Now
is the time when beavers are gearing up for the long winter ahead. Beavers spend
very little time out in the open during winter. Maintaining opening in the ice
requires too much energy. Escape from predators is more difficult. With their
dams intact and repaired, now is the time that winter food is gathered and
stored below water. You can easily find these winter caches by canoeing along
the shore edge and peering into 6 to 10 feet of water. What you will see is a
large group of branches. It looks like a small forest growing under water. Often
some of the branches will still have leaves attached.
Beavers take them to the bottom of the pond and jab them into the soft bottom
during autumn. When a beaver gets hungry, they simply take a little swim to
their underwater cold storage, nip off a branch, and take it back to the lodge.
Beavers have a unique adaptation that allows them to gnaw underwater without
getting a mouth full of water. Their split lip can be closed and sealed behind
their teeth. Once safely back in the lodge, they strip off the bark and inner
cambium layers where the nutrients are found.
An early spring hike, just after ice out, will reveal a large number of
beaver sticks. The leftover scraps of many winter meals.