Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
J.G. Hall
1953
120
July 26 Sageshen Creek 3 mi. NW Hobart Mills, Nevada Co., Calif.
guards the way they treat fir vs aspen.
Aspen stumps almost always left un-
touched + the trunk either cut + peeled
or at least partially peeled but the
with the bark of the upper trunks
+ smaller twigs being preferred but
the firs are often barked completely
in the lower trunks region without
being felled: [barked drawing] or when felled
the bark of the
stump is almost always eaten and
this practically never occurs w aspen.
Even after being felled the bark of
the upper smaller parts of fir is
usually left untouched, the bark of
larger diam being preferred. I
don't know what this means but the
beavers must have some craving
for a certain material in the fir
bark. This upstream area of current
active cutting is continuous with the
mole colony first identified on the N
shore. Located chickadee's nest hole
in asp on N shore of the mole colony
where Mr. Miller had roughly lo-
cated it yesterday. About a dozen
brookies in main pond of the mole