Nature Notes From Crater Lake
Volume 21, 1955
Bear Statistics
By Richard M. Brown, Assistant Park Naturalist

A young bear surveys his surroundings from a
mountain hemlock lookout From Kodachrome by Welles and Welles
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William Rosenbalm -- Bill to many of us
-- Truckdriver during the 1955 season, has served as a member of the
maintenance staff in the park for several summers. He is therefore
particularly well acquainted with the area, and he has come to know and
recognize individually many of the bears that live here. On September
12, 1955, I finally found the long-awaited opportunity to chat with him
for a while about "our" bears and to visit with him one of the places in
the park bears frequently gather.
My patience was well rewarded by a most
interesting conversation and a view of more bears at liberty that I had
ever before seen all at one time. During this period, fourteen different
bears, including eight adults and six cubs, were in evidence at one time
or another. This occasion also gave me a chance to summarize Bill's
knowledge as of that date concerning the bear population in the park,
with particular reference to the latest additions. The most recent
previous study of the bears in this respect is that of Roland D. Walters
(1953. Observations and census of the black bear in Crater Lake
National Park.
Nature Notes from Crater Lake 19:26-28), who reported a total of
forty-one; this included twenty-two adults, six second-year cubs, and
thirteen first-year cubs.
As a result of my discussion with Bill,
thirty-two bears of the park's total were accounted for as of that time.
Of these, thirteen are adults and nineteen are cubs: the latter are all
assumed to be first-year cubs. In spite of some possible error in this
assumption, this indicates that the number of first-year cubs may be on
the increase; in any event, according to the available data, it is not
decreasing. Of course, a certain number of bears is overlooked in any
estimate such as this.
The distribution of these bears by
color phase is as follows: adults, ten black and three brown; cubs,
thirteen black and six brown. Grouping them by families, and including
odd individuals, gives this result: one black mother with three black
cubs; two black mothers (one being Sally, each with three cubs, two
black and one brown; one black mother with three cubs, two brown and one
black; one black mother with two black cubs; one brown mother with two
black cubs; one black mother with two cubs, one black and one brown; one
black mother with one brown cub; Sandy, a brown male about five years
old; Charlie, a black sister to Sandy; one black female, characterized
by a light-colored "necklace" that continues down toward her belly as a
stripe and by a flattened appearance when seen from the front, which has
made herself quite a nuisance in the East Entrance area this summer;
another black female; and one brown male. Perhaps the most unusual
feature made evident by this compilation is the relatively high
proportion of families, exactly one-half, having triplets.
Bill Rosenbalm certainly provides an
outstanding example of the values that may be gained by patient and
persistent observation of our wildlife. I know that he has found it a
fascinating experience; this can be seen simply by the way he behaves
when he is near the bears and by the way he talks about them. I am most
grateful to Bill for his having shared with me the interest, enthusiasm,
and fund of knowledge which he has found through his association with
these animals.
(A later report by Bill Rosenbalm,
recorded in the observation file and dated October 21, 1955, indicates
an additional family consisting of a black mother with two black cubs;
in the family consisting of a black mother with a single cub, the cub
apparently should be classed as black rather than brown. This gives a
total of thirty-five bears including, fourteen adults and twenty-one
cubs. ---R.M.B.)