Chapter II: Part 2
The Cooper chipmunk, _Tamias townsendii cooperi_ Baird, is the larger of the two species mentioned above. It is predominantly dark brown in color; the light colored stripes above and below the eye are indistinct; the black head stripes are not conspicuous; the nine alternating black and grayish white lengthwise stripes on the back are somewhat obscured by the dark color; the tail is black above, grizzled with white, silvery margined, reddish brown below. The total length of a typical specimen is ten inches; head and body, five and one-half inches, tail four and one-half inches.
This chipmunk is found in the higher eastern Cascade Mountains and Olympic Mountains of Washington. In Mount Rainier National Park it occurs from park boundaries to 6,000 feet, almost to forest line.
The Hollister chipmunk, _Tamias amoenus ludibundus_ (Hollister), also called the little chipmunk or Alpine chipmunk, is about a third smaller in size than the Cooper chipmunk. It is predominantly gray brown in color. The light colored stripes above and below the eye are distinct; the black head stripes are more conspicuous than those of the Cooper, the back stripes are sharply defined; the tail is brown mixed with black above, margined with yellowish brown, yellowish brown below. The total length is about eight and three-fourths inches; head and body four and three-fourths inches, tail four inches.
The Hollister chipmunk is found in the higher Cascade Mountains of Washington. In Mount Rainier National Park it occurs generally in the Hudsonian Zone between 4,500 and 6,500 feet, rarely lower or above forest line, but it is one of the few park animals recorded on the summit of Mount Rainier.
_Specimens in park collection:_ Cooper chipmunk, RNP-7, RNP-8, RNP-9, RNP-16, RNP-18, RNP-74, RNP-110; Hollister chipmunk, RNP-28, RNP-29, RNP-30, RNP-95; Longmire Museum, Park Headquarters.
The lively, audacious, and beautifully marked chipmunks are the most popular of all the animals of the park. Locally abundant as they are in the neighborhood of the campgrounds and lodges, easily observed because of their diurnal habits and lack of fear, they are a source of entertainment and amusement to many park visitors.
Like the mantled ground squirrels, the chipmunks adapt themselves rapidly to man’s presence, forage about camps and lodges in search of various delicacies, invade camp stores without hesitation, but are such engaging company that it is difficult to regard them as anything other than friendly guests.
Many varieties of seeds and berries furnish the food supply of this animal, and quantities are stored in their burrows for use during the spring and early summer. Although the chipmunks hibernate during most of the winter, they sometimes venture out on warm, spring-like days, returning to their winter nests when the weather again becomes inclement.
Predaceous birds and mammals active during the daylight hours are all enemies of the chipmunks. These natural enemies work to keep the chipmunk populations free of contagious diseases such as relapsing fever, which is transmissible to human beings, by removing sick and sluggish chipmunks before they can infect their companions.
CASCADE MANTLED GROUND SQUIRREL, BIG CHIPMUNK
_Citellus saturatus_ (Rhoads)
As the name implies, the mantled ground squirrels are ground dwellers. In general external appearance they resemble the eastern chipmunks, but are considerably larger, and much bigger than their environmental associates, the western chipmunks. They may be further distinguished from the latter species by the more robust body, the conspicuous white eye-ring, and the absence of stripes on the head. The Cascade species of mantled ground squirrel is about twelve inches in length overall, with a flattened, somewhat bushy, narrow tail some four inches long. The sexes are colored alike, the mantle over the head, sides of the neck, shoulders, and forearms is reddish-brown, mixed with black, which is in distinct contrast to the rest of the upper parts. The back is grizzled black, merging into grizzled red-brown over the rump, with a narrow yellowish-white stripe, edged with black, on each flank from shoulder to thigh. The underparts and the upper surfaces of the feet are yellowish-white. The tail is well-clothed with dark, yellow-tipped hair above, yellowish-brown below.
_Specimens in park collection:_ RNP-33, RNP-34, RNP-36; Longmire Museum, Park Headquarters.
The mantled ground squirrels are found only in western North America, on the forested mountain slopes from California, Arizona, and New Mexico north into British Columbia.
The species common to Mount Rainier National Park is found in the Cascade Mountains of Washington, and on the Mountain it is confined principally to the Hudsonian zone, between 4,500 and 6,500 feet. It is most abundant on the east side, but is very common locally in the Paradise Valley vicinity.
This animal inhabits by preference the rather open, rocky hillsides, and is seldom seen in the heavily forested sections. Burned over brush lands are favored localities, particularly on those slopes exposed to the sun.
The big chipmunks are less graceful than their livelier, smaller cousins; they are unsuspicious and easily observed, and are very popular with park visitors because of their obvious lack of timidity. They are quick to adapt themselves to the proximity of humans, and sometimes become nuisances about campsites and dwellings because of their audacious thefts of various foodstuffs.
The capacious cheek pouches are used in collecting seeds, nuts, roots, berries, and the bulbs of various plants, which are stored in underground caches. Although these ground squirrels hibernate from early fall until late spring, forage is meager during the first few weeks after emergence from their long winter nap, and without provision for these lean times, the animals would surely starve. They often appear when the snow is still deep over their burrows, digging several feet upward through this white blanket to emerge on the surface.
The most dreaded enemy is the weasel, but the ground squirrels are preyed upon by coyotes, foxes, and hawks as well, since they are a staple item in the diet of most predators.
DOUGLAS PINE SQUIRREL, CHICKAREE
_Tamiasciurus douglasii douglasii_ (Bachman)
A dark grayish brown squirrel about twelve inches in length overall; with prominent ears; moderately slender in form; tail almost as long as the body, somewhat flattened, well clothed with hair but not bushy, more gray than the body. The underparts vary from a pale yellow brown to reddish brown. The sexes are colored alike; the pelage is fairly long, soft, but not silky. The characteristic appearance is one of extreme alertness.
_Specimens in park collection:_ RNP-10, RNP-11, RNP-15, RNP-47, RNP-100, RNP-107; Longmire Museum, Park Headquarters.
The Douglas squirrel is classified as one of the red squirrels, or chickarees, which are distributed over most of forested North America.
In Mount Rainier National Park these squirrels are common, and are found throughout the area from the park boundaries to forest line, and occasionally even higher.
This vociferous, restless bundle of energy is seen and heard by almost every park visitor, bounding across the highway or trail, or scampering madly up a nearby tree, to peer around the trunk or perch upon limb just out of reach where it scolds and chatters vehemently at all intruders.
Unlike the flying squirrel, the chickaree is abroad throughout the daylight hours, busy, inquisitive, obviously and usually noisily, resentful of interference with what it considers its own affairs. Only in the spring is this squirrel somewhat subdued, probably because of the youngsters tucked away in a nearby nest in some tree hollow. The young do not venture into the world until more than half grown, when they take their places in the regular routine of family activities.
Because the Douglas squirrel does not hibernate, it gathers the cones of most of the coniferous trees, as well as the winged seeds of the vine maple and even mushrooms to furnish food over the lean winter months. The late summer and early fall is a busy time for this industrious fellow. The swish and thump of falling cones is a common sound through the woods when the harvest is in progress. A number of cones are neatly clipped from the tree tops, then the worker descends the tree to gather and store them in a hollow stump, beneath a log or the roots of a tree, or even in a hastily excavated hole in the forest floor. Interrupt this activity by secreting a few of the fallen cones, and the imprecations called down upon your head would scorch the printed page if they could be translated into human speech.
Although preyed upon by winged and four-footed predators alike, the chickaree holds its own very well, probably because this fellow is seldom caught napping, certainly not because of shy and retiring habits, since the “chatterer” is one of the most conspicuous and interesting of our woodland creatures.
CASCADE FLYING SQUIRREL
_Glaucomys sabrinus fuliginosus_ (Rhoads)
A medium-sized, arboreal squirrel; dark-brown above, light brown on the under parts, light gray or sometimes light brown on the sides of the face, the sexes colored alike, the young darker than the adults. The eyes are large and dark, the pelage is soft and silky. The flat, furry tail and the fold of loose skin between the fore and hind legs on either side distinguish this animal from any other.
_Specimens in park collection:_ None.
Flying squirrels inhabit a large part of forested North America. The Cascade sub-species is found from southern British Columbia southward along the Cascade Range to the Siskiyou Mountains of Northern California.
Although seldom seen because of its nocturnal habits, the flying squirrel is locally abundant in some sections of the park, particularly at Ohanapecosh Hot Springs.
The most interesting characteristic of this little tree-dweller is its unique habit of gliding from tree to tree through the air. In launching its “flight” the squirrel leaps into space from its perch on a dead snag or tree, extends the fore and hind legs, spreading the loose fold of skin along its sides, and with the flat tail fluttering behind, sails obliquely downward, alighting on the ground or the lower trunk of another tree. This aerial maneuver cannot truly be called flight, but has resulted in the name “flying squirrel.”
Little is known of the life history of this beautiful little animal, because of the difficulty of observation. Old woodpecker holes or natural cavities in trees are favorite nesting places, and the flying squirrel is almost never found away from the nest except at night or when disturbed. It is a shy and retiring creature, preyed upon by owls, martens, weasels, and other small carnivorous animals on the rare occasions when it comes to the ground. Flying squirrels are omnivorous, nuts and other vegetable foods are apparently preferred, although meat is sometimes taken when available.
CASCADE PIKA, CONY
_Ochotona princeps brunnescens_ Howell
This small, rodent-like animal is robust, short-legged, with a tail so short that it is not noticeable in field observation. The sexes are colored alike; gray-brown above, whitish below, ears darker, feet light. The pelage is soft and quite dense. In general appearance the pikas closely resemble the rabbits, except for their small size, short legs, and short, rounded ears. The peculiar “bleating” call is unmistakable.
_Specimens in park collection:_ RNP-12, RNP-13, and one mounted specimen; Headquarters Museum, Longmire.
The many sub-species of the pika are widely distributed at the higher elevations throughout the Rocky Mountains and the Coast Ranges. The typical habitat is the rock-slides and talus slopes near forest line.
In the park one may expect to find the pika on any rocky slope from 3,000 (rarely lower) to 8,000 feet. They are infrequently seen in winter, due to the depth of snow over most sites which they inhabit, but during clear, sunny days they occasionally venture out in exposed locations.
The common name “hay-maker” has often been applied to the pika, because it is one of those provident creatures which literally “makes hay” during the summer months, curing and drying a wide variety of grasses and other plants which are stored for winter food. The hay-barn of the pika is in a sheltered crevice or beneath an overhanging boulder in the masses of rock where it makes its home. These hay-piles are much in evidence where pikas are abundant.
The protective coloring of the animal makes it difficult to distinguish among the rocks, and it is commonly heard before it is seen. The sharp, short bleat, almost a chirp or squeak, often repeated at rapid intervals when the pika is alarmed, is distinctive. If the observer remains motionless, and carefully searches nearby with his eyes, he is almost certain to see a tiny “rock-rabbit” scamper quickly and with silent, sure feet across the rocks, to disappear in a crevice or to perch on an exposed boulder. Should the watcher remain quiet, the pika will resume its interrupted activities until again disturbed.
The well-chosen shelter of the pika, deep down beneath the rocks, affords adequate protection from most predators. Only the weasels, and their relatives, the martens, are capable of following these elusive creatures through the talus. Undoubtedly the hawks and eagles may strike suddenly from the air and be successful in capturing a pika less alert than his fellows, but such occasions must be rare.
PACIFIC BEAVER
_Castor canadensis leucodonta_ Gray
The beaver is the largest North American rodent, and the species found in Mount Rainier National Park is the largest of any of the recognized geographical range. An adult will weigh thirty pounds or more, up to a maximum of sixty pounds. The form is robust; the tail is broad, flat, and scaly; the ears are short; the hind feet webbed. The pelage is composed of short, soft underfur, with long guard hairs. The sexes are alike in size and color, a dark, glossy, reddish brown above, lighter brown below. The beaver is aquatic in habit.
_Specimens in park collection:_ Mounted specimen, Longmire Museum, Park Headquarters.
The geographical range of the beaver extends over most of North America from the Rio Grande northward.
Beaver are not now abundant in the park, and it is doubtful that they were ever numerous. Observations have been made in many sections, notably Fish Creek, Tahoma Creek, along the Nisqually River from the park entrance to the mouth of the Paradise River, Longmire Meadows, the Ohanapecosh River, and Reflection and Tipsoo Lakes. Records indicate that Fish Creek and Tahoma Creek are the sites most extensively used by beavers during recent years, although intermittent activities have been noted in the vicinity of Longmire Meadows. A colony on Kautz Creek was undoubtedly destroyed by the flood of October, 1947.
No other animal played as important a role in the early history and exploration of this country as did the beaver. This is particularly true of the Rocky Mountain west, and to a lesser extent of the Northwest. The fur trade made the beaver pelt a standard of exchange, and to get beaver the trappers moved westward, seeking out this valuable animal in the most inaccessible and remote regions. These early explorations, which had as their incentive fur rather than the expansion of territory, paved the way for later settlement by those seeking new lands and a better livelihood in the West. So great was the demand for fur that the beavers, in the beginning abundant, were reduced in numbers to a point where returns did not compensate trappers for the risk and hardship involved.
The first mention of beaver in the park is found in _Mammals and Birds of Mount Rainier_, Taylor and Shaw, which states:
“Dr. A. K. Fisher records that several beavers lived at Longmire
Springs until 1896, when a trapper killed them all.”
By 1905, according to the _Annual Report of the Secretary of the Interior_, beaver had been exterminated within the boundaries of the park.
However, by 1919, beaver were again active on Fish Creek, along the eastern base of Mount Wow, and in December, Mr. Roger W. Toll, park superintendent, reported two dams, each 100 to 200 feet in length. Mr. Toll’s observations were set forth thus in a letter:
“The beavers are now living in these lakes, and fresh signs are
abundant. There are numerous tracks in the snow leading from the lakes
to the thickets of alder, elder, and willow which they are eating.
There is no typical beaver house in the lakes, but the under-water
entrance to their house can be seen leading under the roots of a fir
tree about four feet in diameter that stands on the edge of the upper
lake.”
It is in this immediate vicinity that fairly extensive beaver workings were observed in November, 1947, including newly repaired small dams and fresh cuttings.
The house or burrow in the stream bank studied by Mr. Toll appears typical of the beaver in this area. In other sections, notably Rocky Mountain National Park, Colorado, where beavers are abundant, an extensive system of dams and canals is frequently developed on the smaller streams, with a large house completely surrounded by the impounded water a central feature of the colony. No such elaborate workings have been found here. Since the beavers habitually reside in burrows along the margins of streams they are referred to as “bank-beavers.” A plausible explanation for this habit is the constant and ample flow of water, which eliminates the necessity for large dams, and is adequate to cover at all times the underwater entrances to the burrows.
A small stream, bordered by cottonwood, alder, and willow, tracing its course through swampy places or meadow lands at intervals, is the preferred habitat of the beaver. The bulk of its food is made up of the bark of the tree species mentioned above, although coniferous trees are sometimes used, perhaps as an appetizer. The roots of aquatic plants are eaten also, as well as the smaller roots of tree species. In an active beaver colony, freshly peeled twigs and branches will be found lodged against the upstream side of the dam, as well as along the stream and pond margins.
Much has been written concerning the sagacity, engineering ability, and industry of the beaver. Certainly “busy as a beaver” is an apt comparison for the industrious. The amount of tree-felling, food harvesting, and construction and repair which a colony of beavers will accomplish overnight is remarkable.
Other characteristics, while impressive, are not the unerring instincts that were often attributed to the animal by early writers. While the dams are in most instances sturdily constructed of brush, small stones, mud, and, at times, sizeable short lengths of trees, a sudden spring freshet may completely destroy a poorly located structure. That the beaver exhibits what might be considered good judgment in taking advantage of natural stream barriers in dam construction is commonly demonstrated, however. It is not unusual to find trees that have fallen across water courses, or boulders in or on the margins of streams, used to provide a portion of a dam, apparently by design rather than by accident.
The felling of trees is approached in a haphazard fashion, without regard to the direction of fall. It appears that the beaver, or beavers, set to work to gnaw the trunk through at a comfortable working height above the ground, a point they can reach from a sitting position. Where the tree falls is left entirely to chance. There may be a half circle of open space in one direction, yet it is quite possible that the tree will topple in the opposite direction and so lodge before it reaches the ground. Under such circumstances the beavers may cut another section or several sections from the butt of the tree, without eventually accomplishing their purpose.
Nevertheless, to give credit where credit is due, it must be admitted that the beaver is unique in the animal kingdom by virtue of its feats, even though these are largely the result of instinct.
Among the natural enemies of the beaver clan are listed most of the predators; fox, coyote, cougar, bear, wildcat, and where their habitats coincide, the otter. It seems that all of these exhibit a liking for the flesh of this largest of rodents, although a painstaking stalk, consummated by a swift rush or leap is necessary for success, lest the beaver escape to his natural refuge, the water. The otter, of course, may enter the burrow or house and kill the young, but it is not likely that it has the strength required to deal with a full grown animal.
MOUNT RAINIER APLODONTIA, MOUNT RAINIER MOUNTAIN BEAVER
_Aplodontia rufa rainieri_ Merriam
A stout-bodied rodent, about the size of a muskrat, with a tail so short that it is concealed in the fur. Sexes are alike in size and color; upper parts light brown with a darker overcast, under parts a dull brown, sometimes showing white patches. Eyes and ears small.
_Specimens in park collection:_ RNP-80, RNP-104, and a mounted specimen, Longmire Museum, Park Headquarters.
The various subspecies of aplodontia are found only along the western coast of North America, from the mountain ranges westward to the Pacific. It is not known to occur elsewhere in the world.
The Mount Rainier mountain beaver is found only on and in the immediate vicinity of Mount Rainier, where it is abundant in some localities from park boundaries to 6,000 feet. It has been reported from the Paradise River (5,200 feet), Longmire, Reflection Lake, Ohanapecosh, Comet Falls, the Rampart Ridge Trail, the Nisqually Entrance, in the Nickel Creek burn, and on the Wonderland Trail on the north side of Stevens Canyon (3,000 feet).
The common name of this animal is not particularly appropriate, since it resembles the muskrat and pocket gophers in appearance and habits more closely than it does the beaver to which it is not closely related. It prefers a wet habitat, but is not aquatic. It occasionally gnaws through the small stems of willow, alder, and other shrubs, felling them to the ground, but it makes no attempt to construct dams or canals. Tiny rivulets are often diverted to flow through the mountain beaver’s burrows, perhaps by accident, possibly because the animal intended such diversion.
The food of the aplodontia includes almost every succulent plant found in the park, as well as many shrubs and the bark of some trees. Bracken appears to be on the preferred list. During the summer months the presence of the animal in a locality is often indicated by bundles of plants cut and piled in exposed places to cure. The mountain beaver is more particular in this respect than the pika, the bundles are often rather neatly arranged on a log or stump, the base of the stems at one end of the pile, nicely evened up, and the entire bundle intact. After curing, the bundles are stored in the burrows, to serve as food and nesting material.
A rather extensive system of burrows from a few inches to a foot or two beneath the surface, and piles of freshly excavated earth are also evidence of the workings of this animal. The typical site chosen for development is ordinarily moist, probably not because the aplodontia is a lover of water, but because it is in such locations that suitable food plants abound. The burrows are constructed as exploratory routes in foraging, with what appears to be a main gallery intersected by a number of branches. These burrows emerge in thick cover or under logs, with the openings often connected by well-beaten runways where the overhanging plants and shrubs afford concealment.
Such extensive workings were found along the Wonderland Trail in Stevens Canyon in 1947 and 1948. The first indication of the activity of mountain beavers was the undermined condition of the trail in several places, where burrows crossed under the path and caved beneath the feet. Upon investigation many freshly cut stems of bracken were discovered, and several piles of recently excavated earth, in some instances sufficient to fill a bushel basket. This site was typical: excellent cover; several small streams; and deep, very moist soil with few rocks and an abundance of food plants.
Natural enemies of aplodontia undoubtedly include nearly all of the predatory animals, particularly the skunks and weasels, which can invade the dens without difficulty.
YELLOW-HAIRED PORCUPINE
_Erethizon dorsatum epixanthum_ Brandt
The porcupine is a large, short-legged rodent (total length about 30 inches), clumsy and awkward appearing, slow-moving, bearing long, sharp quills or spines over most of the body and on the short, club-like tail. The pelage is composed of soft, brownish-black or black hair. Intermixed with the pelage, and extending beyond it are the quills and long, stiff, shiny, yellowish-tipped hairs, which give a yellow tinge to the underlying dark color. It is impossible to confuse this unique animal with any other found in the park.
_Specimens in park collection:_ RNP-42, RNP-47, and a mounted specimen, Longmire Museum, Park Headquarters.
The several species of porcupine are widely distributed, ranging in the timbered regions of the northeastern states, the Rocky Mountains from near the Mexican boundary northward, and from northern California into Canada and Alaska.
Formerly rare, the first actual record was of a single individual in Paradise Valley in 1933, porcupines are increasing throughout the forested areas of the park, although the animal is still considered uncommon.
An apparent lack of interest or concern in events is probably the outstanding characteristic of the porcupine. Protected as it is with an almost impregnable defense of quills, it has no need for speed and shows little fear of any other creature, even man. If pursued when encountered, it will waddle away at top speed, which is about equal to a man’s brisk walk. If crowded closely, the animal will take to the nearest tree if given the opportunity, or may thrust its head beneath a convenient root, log, or rock, then thrash the muscular tail about vigorously in an effort to discourage attack. The tail is indeed a formidable weapon. The quills are loosely attached to the skin, and are readily detached when they strike any object. They may even be loosened by the swinging of the tail, and fly through the air for a short distance. It is conceivable that quills thus detached might actually penetrate the skin at short range, but a porcupine can not “shoot” its quills.
During the winter months “Porky” feeds upon the bark of various trees, with an apparent preference for the conifers and coniferous foliage. At times a single tree may furnish food for several days. The porcupine is not a traveler, and rarely moves far, since food is ordinarily readily available. In summer bark is eaten at times, but the diet is predominantly the leaves and new twigs of shrubs, grasses, and succulent plants.
The inordinate liking for salt exhibited by the porcupine is well known. Tool handles which bear a trace of dried perspiration are eagerly devoured; it is common to find table-tops and other articles of furniture in abandoned camps almost destroyed if they retain any evidence of bacon, salt pork, or other salty foods. This habit has created a hearty dislike among campers and woodsmen for the “quill-pigs,” and they are notorious as camp nuisances.
Because of its nocturnal habits, the porcupine is not often seen. It prefers to remain concealed in the uppermost branches of a thick-foliaged tree, or perhaps in a hollow stump or log during the day, venturing out at dusk to forage.
Natural enemies of this animal include many of the predators, although the protection afforded by the quills is sufficient to discourage attack in most instances. Perhaps extremities of hunger result in desperate attempts upon occasion, but it is difficult to imagine any flesh-eater coming out better than second-best in an encounter, with one exception. Observations and records of naturalists, trappers, and other competent observers throughout the north woods country indicate that the fisher is an implacable and deadly enemy of the porcupine, which is the fisher’s favorite prey and which it kills by tearing open the unprotected belly. Observers have found trapped fishers to contain porcupine quills in the intestines and in other parts of the body, with no apparent harmful effects. Since the fisher has been almost exterminated over most of its range within the United States, however, it cannot be regarded as an effective check upon the increase in the porcupine population. In rare instances, coyotes and cougars have been recorded as preying upon the porcupine, and forest fires have been important in reducing their numbers in the past.
THE VARYING HARES
Two kinds of varying hares, or snowshoe rabbits, are known to occur within the park. A brief discussion of each follows:
The Washington varying hare, _Lepus americanus washingtonii_ Baird, is a medium-sized hare, larger than the common cottontail rabbit. Mammalogists differ in their discussions of the coloration of this species. The variations of opinion are of interest. H. E. Anthony, in his _Field Book of North American Mammals_, thus describes the Washington Varying Hare:
“Summer and winter pelages both dull, dark reddish brown (no white
winter pelage); tops of feet more intense reddish; soles of hind feet
sooty.”
Taylor and Shaw, in _Mammals and Birds of Mount Rainier National Park_, are in general agreement with Anthony’s description of summer pelage, but describe the winter coat as follows:
“In winter in the lowlands the pelage merely puts on a slightly paler
or more vinaceous cinnamon tinge; but in Mount Rainier National Park a
white coat is assumed.”
Still another observation was made by Mr. Walter W. Dalquest of the Department of Zoology, University of Washington. After examining study skins of the varying hares collected in the park, Mr. Dalquest made the following comments in a letter addressed to the park naturalist (April, 1939).
“The snowshoe hares of the entire Western Cascade region are a very
interesting but mixed up group. I should refer all three of your
specimens to _Lepus americanus washingtonii_ plus _cascadensis_.
“The summer specimen from Longmire seems to be typical _washingtonii_
in color and skull. The white winter specimen seems to be typical
_cascadensis_ while the very dark specimen (still in winter coat)
represents an interesting condition found only in the Western
Cascades, in which the specimens are darker than any other forms of
_Lepus americanus_ I have ever seen. This character is well
represented in a large series from Skykomish, Washington, in which the
winter coat varies from pure white to almost black.”
From these observations it would appear that there is a marked variation in the winter coloration of _Lepus americanus washingtonii_, and further that another subspecies of varying hare, _Lepus americanus cascadensis_, is found in the park.
The Washington varying hare is not abundant in the park, having been recorded only from the southwestern section, from the park boundary to an elevation of about 3,000 feet, rarely higher.
It occurs on the western slope of the Cascades to the coast in Washington, and northward into British Columbia.
The Cascade varying hare, _Lepus americanus cascadensis_ Nelson, is about the same size as the Washington varying hare. In summer it is a dark, rusty brown, reddish along the back, darker on the rump; white in winter.
This hare apparently occurs most frequently in the southwestern part of the park also, although tracks observed in winter at Yakima Park may have been those of this species. Its range undoubtedly overlaps that of the Washington varying hare, but it seems probable that in general it is found at the higher elevations, 3,000 to 5,000 feet.
The distribution of this species, within its altitudinal range, is about the same as that of the Washington varying hare.
_Specimens in park collection:_ Washington varying hare, RNP-57, RNP-99, and a mounted specimen; Cascade varying hare, RNP-98; Longmire Museum, Park Headquarters.
From the foregoing data, it is apparent that positive field identification of either species is impossible in most instances. If a brown hare is observed in winter (mid-October to mid-April) it may be identified with reasonable accuracy as the Washington varying hare. However, if the hare is white, it may be either species, particularly if its habitat is near the elevation of overlapping distribution, 3,000 feet. Since the summer pelage of both species is similar, it is not possible to differentiate during that season. In general the observer may expect to find the Washington varying hare at 3,000 feet or lower, the Cascade varying hare at 3,000 feet or higher. That such identification can not be considered infallible, however, is demonstrated by a brown specimen collected near Reflection Lake, elevation 4,800 feet, in February, and identified as the Washington varying hare.
The aptness of the common name, varying hare, is easily understood, since it applies to the seasonal change of color, brought about by the shedding of the coat during the moult. The term “snowshoe rabbit” is derived from the long, broad hind feet of the animal, Nature’s wise provision which permits rapid and efficient progress over deep, soft snow.
The food preferences and habitats of the snowshoe rabbits are similar. Both species prefer the dense cover of swamps and thickets, which provide excellent protection from hawks and owls above as well as avenues of escape from coyotes, foxes, and other predators on the ground. Every large predator is the enemy of the snowshoe.
Green plants, grasses, and clover make up the bulk of the food in summer. The winter diet consists chiefly of the bark, buds and twigs of various trees and shrubs. Coniferous foliage is often eaten.
WESTERN BUSHY-TAILED WOOD RAT
_Neotoma cinerea occidentalis_ Baird
This large, gray-brown rat (head and body nine inches, tail eight inches), can not be mistaken for any other park animal. It closely resembles a several times magnified white-footed mouse, except that the tail is so well-haired as to be almost like that of a squirrel. The ears are conspicuous, the eyes large and lustrous, the feet, underparts, and underside of the tail are dull white.
_Specimens in park collection:_ RNP-19 and RNP-20, Longmire Museum, Park Headquarters.
The wood rats are found over the western United States, northward into western Canada, and in some of the southeastern and mid-western states.
The Mount Rainier species inhabits southern British Columbia, all of Washington and Oregon, northern California and Nevada, and most of Idaho. In the park it is found from park boundaries to forest line, rarely higher, and is not common, although Taylor and Shaw (1919) found it “unusually abundant in the timber along Tahoma Creek,” and recorded one individual at Camp Muir (10,000 feet).
Every woodsman has a fund of “pack rat” stories, nearly all of them emphasizing the thieving propensities of the animal, and every story has a basis, at least, in fact, because the wood rat will usually pick up and carry away anything about the camp that strikes his fancy, if such articles are not beyond his physical powers. At times these treasures may be found cached away in a bulky pile of dead twigs, leaves and other debris in some rock crevice, but the wood rats seem to place little dependence upon these “nests” as a place of refuge, preferring to retreat into a more adequately protected spot in the rock mass itself.
These animals are ordinarily nocturnal in habit, but may occasionally be seen by day. They are not excessively shy, and oftentimes create quite a disturbance with their nightly prowlings when they are found about campsites or dwellings. Their presence is frequently made known by a soft “thump-thump-thump” made at regular intervals of about one second by tapping a hind foot on the ground, rock, or some object.
The wood rat has a distinct musky odor, and a cave, crevice, or cabin in which they have established residence can be recognized at once, even by man’s inferior sense of smell, by the atmosphere.
It is readily apparent from the preceding discussion that the reputation the wood rat has made among woodsmen and campers as a nuisance is not ill-founded. They are interesting and active creatures, however, not nearly so unsavory as the name “rat” implies, and in many instances the entertainment they provide outweighs their less engaging habits.
WASHINGTON WHITE-FOOTED MOUSE, DEER MOUSE
_Peromyscus maniculatus oreas_ Bangs
The white-footed mouse is about the size of a house mouse, with the head and body about three and one-half inches in length, the tail about four and one-half inches. The ears and eyes are large; the tail is comparatively long, blackish-brown above, white below. The general coloration over the head and back is a rather dark tawny-brown, intermixed with black hairs, with a preponderance of black toward the base of the tail. The underparts are white, with the lead-gray hair bases showing through; the feet are white. In examining this mouse, the impression is one of an immaculately clean little animal, definitely at variance with the usual conception of mice.
_Specimens in park collection:_ RNP-3, RNP-4, RNP-22, RNP-23, RNP-35, RNP-36, RNP-37, RNP-38, RNP-39, RNP-77, RNP-84, and RNP-91, together with a mounted specimen; Longmire Museum, Park Headquarters.
The white-footed mice are distributed over nearly all of North America south of the Arctic Circle.
The Washington species is found in the western part of the state and northward into southern British Columbia. On Mount Rainier it occurs throughout the park to elevations well above forest line, and has been recorded on the summit of the Mountain.
The inquisitive, active, and abundant white-footed mice are attractive and familiar inhabitants of the woods about the Mountain. They are readily adaptable to a variety of conditions, and are quick to invade camps and dwellings in search of shelter and food. They are particularly fond of cereal grains, and will often damage clothing left within their reach, since these materials are evidently highly prized for the nest. Campers will do well to protect food-stuffs and garments from their foraging instincts.
These animals are nocturnal in habit, it is rare to see them abroad by day. They feed upon a wide variety of plant seeds and vegetable material, and are preyed upon by all of the four-footed carnivores, as well as the owls.
RAINIER POCKET GOPHER
_Thomomys talpoides shawi_ Taylor
The sturdily built pocket gopher, with its long, sharp, fore claws, tiny eyes and ears, external cheek pouches, robust body, and short legs, can hardly be confused with any of the other rodents. The head and body are about six inches in length, the thinly haired, whitish tail about two and one-half inches. The color is light brown above, with the lead-colored hair bases showing through in places; paler brown on the sides; gray-white below, with white on the throat and a small, irregular white patch on the nose.
_Specimens in park collection:_ RNP-101, Longmire Museum, Park Headquarters.
The pocket gophers are widely distributed over western North America, and are abundant in many regions.
In Mount Rainier National Park the local species is found on the east side of the park in the Hudsonian Zone above 4,500 feet, usually on the grassy hillsides and in the open meadows.
These animals are burrowers in the true sense of the word, rarely venturing above ground, but constructing elaborate systems of connecting tunnels a few inches beneath the surface. Because of this subterranean habit they are seldom seen, although the evidences of their presence may be conspicuous. Mounds of freshly turned earth scattered about over a meadow indicate that active excavations by pocket gophers are in progress.
The fore claws are well adapted for the purpose of digging, and as the burrow progresses, the earth is disposed of by thrusting it out through a surface opening. Careful observation may be rewarded by a glimpse of the head, shoulders and forelegs as the gopher accomplishes this disposal, thus forming the mound of earth, which eventually closes the emergence-hole. When not in use, these openings are closed by earthen plugs.
Pocket gophers feed almost exclusively upon the roots and bulbs exposed by their burrowing activities, although at rare intervals they may move a short distance from the burrow to gather surface food.
Earth excavated during the winter months is firmly packed in tunnels which the gopher makes on the surface of the ground beneath the snow. These winding ridges of earth are revealed by the melting snow as further evidences of pocket gopher activity.
THE MEADOW MICE
Three species of meadow mice are known to inhabit the park, and of these, two are so similar that the positive field identification of each is difficult in most instances. Only the Cascade meadow mouse, or water vole, shows sufficiently distinctive characteristics to permit easy recognition. Of the two similar species, the Oregon meadow mouse is probably most likely to be encountered.
The Oregon meadow mouse, _Microtus oregoni oregoni_ (Bachman), is similar in general coloration to the Olympic meadow mouse, but has conspicuous ears, is distinctly smaller, and has been found from park boundaries to 5,000 feet and higher.
The Olympic meadow mouse, _Microtus longicaudus macrurus_ Merriam, is dark brown above, with slightly paler sides, and with under parts a dull buff or whitish. The tail is distinctly bicolor, black or brown above, white below. The ears are inconspicuous. The head and body measure about five and one-quarter inches, the tail about three and one-half inches. This mouse is rarely found above the 3,000 foot elevation.
The Cascade meadow mouse, _Microtus richardsonii arvicoloides_ (Rhoads), is much larger than any of the other species found in the park. The head and body measure about six inches, the tail a little over three inches in a typical specimen. In general this species prefers a moister habitat than the other meadow mice, and is usually found from 4,000 feet to forest line (6,500 feet). It is the most abundant of the park mammals found at high elevations, and has been recorded at Camp Muir, 10,000 feet.
_Specimens in park collection:_ Oregon meadow mouse, RNP-27, RNP-32, RNP-51, RNP-71; Olympic meadow mouse, RNP-31; Cascade meadow mouse, RNP-5, RNP-26, RNP-48, RNP-49, RNP-50, RNP-59, RNP-60, RNP-75, RNP-81, RNP-109; Longmire Museum, Park Headquarters.
As the name implies, the general habitats of these rodents are the open parks and meadows, from park boundaries to above the forest line. They are locally abundant in many places, and are active throughout the year, feeding upon the various green and succulent plants, burrowing along the surface of the ground beneath the snow to find food in winter. Only the Cascade meadow mouse shows any marked deviation in its habits, being semi-aquatic, at least in summer, with a marked preference for marshy or boggy meadows, taking to the water readily to escape danger, and burrowing along the banks of small streams. In winter this mouse often seeks the hillsides and normally dryer sites, probably in search of a more abundant food supply, the change in habitat being encouraged by abundant winter moisture. These hillside habitats often reveal earthen tunnels on the ground surface as the snow melts, similar to those made by the pocket gopher. Mounds of earth thrown up around the burrows of the Cascade meadow mouse are also similar to the gopher mounds, but may be distinguished from the latter by the open burrows, often left so, rather than being closed by earthen plugs.
It is well that the meadow mice are so abundant and prolific, since they constitute a large portion of the food supply of coyotes, foxes, and other predators.
MOUNTAIN LEMMING MOUSE, OLYMPIC PHENACOMYS, HEATHER VOLE
_Phenacomys intermedius oramontis_ Rhoads
The lemming mouse is similar in appearance and habits to the meadow mice; the head and body are four and one-half inches to five inches long; the tail from one to one and one-half inches. The back is a grizzled gray-brown, showing a yellowish tinge; the belly is gray-white; the fur is sprinkled with black hairs. The dull color and short tail distinguish this mouse from all others except the Oregon meadow mouse. The latter is slightly smaller, the hair is less woolly, but field distinction is difficult or impossible.
_Specimens in park collection:_ None.
The genus _Phenacomys_ is found in the western United States and most of Canada, inhabiting the mountain summits and colder zones.
The Olympic phenacomys of Mount Rainier occurs only at the higher elevations, 4,500 to 8,500 feet in the park, and its range extends into the Olympic Mountains, as well as southward along the Cascade crest into central Oregon.
The alpine parks and windswept slopes well above forest line are the home of the hardy little lemming mice. One of the common names for the animal, heather vole, is suggestive of the locality where they may be found, finding shelter in the protection afforded by the low-growing masses of the heather. Their range is not entirely confined to the alpine country, however, since records have been established in the upper forested areas, down to a low elevation of 4,000 feet.
The only conspicuous evidences of the presence of the heather vole are the tidy, compact winter nests of dried grass, lichen, and other plant fibers. These nests, constructed on the ground under the snow, are apparently abandoned when the snow melts, and it is difficult to discover other signs of the animal’s activities.
Like the meadow mice, the mountain lemming mouse is a staple item in the diet of the predators.
CASCADE RED-BACKED MOUSE
_Clethrionomys gapperi cascadensis_ Booth
The red-backed mouse is slightly larger than a house mouse; in a typical specimen the head and body are about four inches long, the tail slightly less than two inches. The distinguishing characters which separate this animal from the other mice are the broad, reddish-brown stripe over the back from the forehead to the base of the tail (this stripe distinguishes it from the held mice), and the inconspicuous ears and short tail which are so different from the large ears and long tail of the white-footed mouse.
_Specimens in park collection:_ RNP-17, RNP-62, RNP-63, RNP-65, RNP-66, RNP-67, RNP-68, RNP-69; Longmire Museum, Park Headquarters.
The many species of red-backed mice occur generally over the wooded sections of North America.
The Cascade red-backed mouse is found in the Cascade Mountains from British Columbia southward into Washington, east into northern Idaho and northeastern Oregon. In Mount Rainier National Park it occurs generally from park boundaries to forest line.
The heavily wooded areas of the park are the preferred habitats of the red-backs. They are usually common in such localities, but are not locally abundant in colonies, as are the field mice.
The activities of these mice are not confined to nocturnal excursions. They may be seen at any time of day, and the quiet observer in the deep woods is almost certain to glimpse them if he is patient enough to watch for a few moments.
NORTHWESTERN JUMPING MOUSE
_Zapus princeps trinotatus_ Rhoads
The Northwestern jumping mouse is a little larger than a house mouse, head and body about four inches, tail about six inches. The back is dark, sprinkled with buff; a broad band of buff, sprinkled with blackish hairs, extends along the sides; the underparts are pure white. The long tail is dull gray above, white below, and almost naked except for a tiny tuft of dark hair at the tip. This mouse may be easily distinguished from any other park animal by the long hind legs and tail.
_Specimens in park collection:_ RNP-6, RNP-24, RNP-25, RNP-52, RNP-53, RNP-54, RNP-58, RNP-73, RNP-76, RNP-92; Longmire Museum, Park Headquarters.
The jumping mice are found throughout most of the United States from northern California and North Carolina, northward into Canada to the Arctic Circle. The Northwestern jumping mouse occurs from northern California through the Cascades to the coastal region of southern British Columbia.
In Mount Rainier National Park this animal is found irregularly from park boundaries to 6,000 feet. It is not common and is rarely seen.
The usual habitats of the jumping mice are the subalpine parks and meadows, where they may sometimes be abundant in a restricted locality. They hibernate from early fall until late spring, and during their period of summer activity they rarely leave the nest during daylight hours. The nests are on the ground, small and dome-shaped, made of dried grasses.
THE MOLES
Within the park are found three different kinds of moles, two of which are very closely related and similar in general appearance. The third is distinct in size and coloration.
The Townsend mole, _Scapanus townsendii_ (Bachman), is considered to be the largest of its kind on the continent, with a total length of about eight inches. The body is stout, with tiny eyes, short legs and tail. The fur is dense and velvety, blackish-brown in color, usually with a purplish tone.
It is found in “extreme northwestern California, Oregon and Washington west of the Cascade Mountains” (Jackson). Little is known about its status within the park. Workings were observed and a specimen collected at Spray Park (5,500 feet) in 1919.
The coast mole, _Scapanus orarius orarius_ True, is smaller than the Townsend mole, attaining a length of about six and one-half inches. Its coloration is black or blackish-brown above, with the underparts more grayish in tone.
This species is found in the humid coast region of northern California, Oregon and Washington. It is apparently not common in any part of the park, but has been collected at Longmire and the Owyhigh Lakes.
The Gibbs shrew-mole, _Neurotrichus gibbsii gibbsii_ (Baird), is a very small mole, about the size of a house mouse, around four inches in total length. The entire coloration is dark grey, with the longer hairs frequently tipped with whitish.
This mole is found in extreme southwestern British Columbia, western Washington and Oregon west of the Cascade Mountains, and south into California in the coast region and interior west of the Sierra Nevada Mountains. It occurs rather commonly throughout the park below 4,000 feet, although an occasional record has been obtained at elevations in excess of 5,000 feet. Its habitat is around grassy swamps and near streams.
_Specimens in park collection:_ Townsend mole, none; coast mole, RNP-105; Gibbs shrew-mole, RNP-21, RNP-106, RNP-112, RNP-114; Longmire Museum, Park Headquarters.
The mole is often confused with other small mammals, especially the rodents. However, it does not belong with the rodent group and can readily be distinguished by its short, very stout front legs which end in broad, handlike feet with the palms turned outward; and by its pointed nose; short tail; elongated body with fine, plush-like fur; and the apparent absence of external eyes and ears.
The mole is one of Nature’s strangest creations. From birth it is destined to live underground, working diligently in total darkness to obtain the food necessary for its existence. Its appetite seems never to be satisfied and captive specimens have been known to eat more than their own weight in a single day. Earthworms and grubs make up the major portion of the food eaten, although beetles, spiders, various insects and occasionally plants are of importance. The mole has the dubious distinction of being of great value to the farmer because of the worm pests he destroys, yet is regarded in return as one of the farmer’s worst pests. A large part of this bad reputation arises from the damage done growing plants by rodents that use the mole burrow to reach the tender flower bulbs and growing roots found underground.
While hawks, owls and small mammal predators take a limited number of moles as food, high water in areas containing their homes constitutes an important factor in controlling their abundance. The heavy rains and snow runoff in the park probably has much to do with the local mole population.
THE SHREWS
The smallest of our North American mammals, the shrew, is represented in the park by six different forms, all closely related and similar in general appearance.
The wandering shrew, _Sorex vagrans vagrans_ Baird, is a small shrew with dark brown upperparts and ashy gray underparts. The tail tends to be bicolor with a dusky color above and paler below.
This species is found from southern British Columbia through western Washington and Oregon into northern California. Only two records have been obtained from the park. These came from a specimen trapped at Bear Prairie (2,000 feet) about three miles south of Longmire and from one taken in Stevens Canyon (no elevation given). The wandering shrew lives in areas where there is considerable moisture and a damp, heavy forest cover.
The Olympic dusky shrew, _Sorex obscurus setosus_ Elliot, is a fairly large shrew with upperparts brown with a few light-tipped hairs, the lower parts ashy washed with buff. The tail is brown above and yellowish-white below.
This shrew is found from the Cascades westward and south as far as the Columbia River. In the park it has been recorded in a number of localities ranging from 2,000 to 6,800 feet in elevation. It is normally found in moist situations where the undergrowth is heavy and is one of our common shrews.
The cinereous shrew, _Sorex cinereus cinereus_ Kerr, is of medium size and difficult to separate from the dusky and wandering shrews. It is distinguished by its small size and pale color.
This species “ranges over most of Alaska, Canada and the northern half of the United States” (Dalquest). Within the park it has been recorded only along the Paradise River, and data are lacking regarding its range.
The Trowbridge shrew, _Sorex trowbridgii trowbridgii_ Baird, is a large shrew, about three-fourths the size of a common house mouse. In coloration it is black or grayish above, lighter below. The tail is sharply contrasting blackish above and whitish below.
This shrew is found west of the crest of the Cascade Range in Washington and Oregon, and has been collected in the park at Ohanapecosh (2,000 feet), Tahoma Creek (2,500 feet), and Longmire (2,700 feet). It prefers dark woods and moist situations.
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Mammals of Mount Rainier National ParkChapter II: Part 2
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