36 
JOURNAL OF MAMMALOGY 
Sciurus hudsonicus hudsonicus. Red Squirrel. — Of general occurrence in 
this territory but in no locality visited did the species seem to be plentiful. The 
squirrels were most in evidence in localities where cedars occurred. On the seeds 
of thesb trees the animals always seemed to feed abundantly and the ground in 
such places was often literally covered with cedar cones. The species as a rule 
was found very quiet in this region, rarely indulging in its scolding chatter. 
Specimens taken on the North Kawishiwi — ^Clear Lake portage; at the outlet of 
Lake Bald Eagle; at the Isabella River rapids at Bald Eagle; and at Rice Lake. 
Tamias striatus griseus. Gray Chipmunk. — ^Common in suitable localities 
throughout the region. Specimens taken on the North Kawishiwi — Clear Lake 
portage; on the South Kawishiwi in the Clear Lake region; at the Isabella River 
rapids at Bald Eagle. 
Eutamias borealis neglectus. Long-tailed Chipmunk. — Found in all the 
localities in which the preceding species occurred, and apparently was more 
numerous; it was certainly more in evidence. Several of each species usually 
congregated about our camp wherever we remained for any length of time. At 
one point where a trail crew had left a peck of oats in a box, a half dozen or more 
of each kind often feasted together in reasonable harmony while it lasted, but 
the smaller species seemed to have some fear of the larger. Specimens from the 
same localities as for Tamias. 
Marmota monax canadensis. Canada Woodchuck. — ^While apparently of 
general distribution it was nowhere found to be very common. A specimen was 
taken June 19, on the north shore of Clear Lake; it apparently had its den in a 
crevice among some rocks. A half-grown specimen in the black phase was taken 
along the South Kawishiwi, July 24. Other localities where records were ob- 
tained are: north shore of Gabro Lake, specimen shot July 31; Isabella River 
rapids at Bald Eagle, one seen August 15; northeast shore of Lake Isabella, 
specimen shot by Prof. N. L. Huff, August 28. The first three records are for 
1912, the last two for 1913 and 1914 respectively. 
Castor canadensis. Beaver. — In 1912 no recent signs of beavers were found 
along the route followed from the North Kawishiwi southeastward, until we 
reached the Little Isabella River, although careful scrutiny was made along all 
the water courses between these two points. Along the Little Isabella, however, 
many fresh workings were located, evidently of animals that had come down from 
the headwaters of this stream where a colony was known to have existed a year 
or two before. The following season a new lodge was discovered down stream 
on the Isabella River, about a mile above Bald Eagle, and in 1914 and 1915 very 
notable extensions of operations were observed along the Isabella from this 
point eastward nearly to Perent Lake; while a single lodge had been built at 
“Dead Man’s Rapids” on the North Kawishiwi. When I returned to this terri- 
tory in 1920 it was apparent immediately that a great spread of the beaver had 
taken place during the intervening period. More than a score of lodges were 
located beyond those recorded in 1915 and as time did not permit our covering 
all of the localities examined in that season there is no doubt that many more 
might have been found. In addition to lodges there were of course many new 
operations such as dams and cuttings, and numerous beavers were seen. Several 
lodges of the former years were still occupied and had grown to much larger 
dimensions. On August 2 a young beaver about the size of a full-grown muskrat 
