A few days before the mother leaves the youngsters, they run about and
find most of their food. One year, a day or two before the one by my
cabin bade her children good-bye, she brought them--or, at any rate,
the children came with her--to the place where we often distributed
peanuts. The youngsters, much lighter in color, and less distinctly
marked than the mother, as well as much smaller, were amusingly shy,
and they made comic shows in trying to eat peanuts. They could not
break through the shell. If offered a shelled nut, they were as likely
to bite the end of your finger as the nut. They had not learned which
was which. With their baby teeth they could eat but little of the nut,
but they had the storing instinct and after a struggle managed to
thrust one or two of the nuts into their cheek pockets.
The youngsters, on being left to shift for themselves, linger about
their old home for a week or longer, then scatter, each apparently
going off to make an underground home for himself. The house may be
entirely new or it may be an old one renovated.
I do not know just when the mother returns to her old home. Possibly
the new home is closely connected with the one she has temporarily
left, and it may be that during the autumn or the early spring she
digs a short tunnel which unites them. The manner of this aside, I can
say that each summer the mother that I watched, on retiring from the
youngsters, carried supplies into a hole which she had not used
before, and the following spring the youngsters came forth from the
same hole, and presumably from the same quarters, that the children of
preceding years had used.
Chipmunks feed upon a variety of plants. The leaves, seeds, and roots
are eaten. During bloom time they feast upon wild flowers. Often they
make a dainty meal off the blossoms of the fringed blue gentian, the
mariposa lily, and the harebell. Commonly, in gathering flowers, the
chipmunk stands erect on hind feet, reaches up with one or both hands,
bends down the stalk, leisurely eats the blossoms, and then pulls down
another. The big chipmunk, however, has some gross food habits. I have
seen him eating mice, and he often catches grasshoppers and flies. It
is possible that he may rob birds' nests, but this is not common and I
have never seen him do so. However, the bluebirds, robins, and
red-winged blackbirds near me resent his close approach. A chipmunk
which has unwittingly climbed into a tree or traveled into a territory
close to the nest of one of these birds receives a beating from the
wings of the birds and many stabs from their bills before he can
retreat to a peaceful zone. Many times I have seen birds battering
him, sometimes repeatedly knocking him heels over head, while he,
frightened and chattering, was doing his best to escape.