Editing Northern flying squirrel (section)

==Diet==
A major food source for the squirrels are [[fungi]] of various species, although they also eat [[lichen]]s, all mast-crop nuts, tree sap, insects, carrion, bird eggs and nestlings, buds and flowers. The squirrels are able to locate truffles by [[olfaction]], though they also seem to use cues such as the presence of [[coarse woody debris]], indicating a decaying log, and [[spatial memory]] of locations where truffles were found in the past.<ref>[http://www.nature.ca/notebooks/english/flysquir.htm Northern Flying Squirrel], Natural History Notebooks</ref><ref>[http://www3.northern.edu/natsource/MAMMALS/Northe1.htm Northern Flying Squirrel] {{Webarchive|url=https://web.archive.org/web/20140910195400/http://www3.northern.edu/natsource/MAMMALS/Northe1.htm |date=2014-09-10 }}, Northern University</ref>

The northern flying squirrel is also known to cache food for when food supplies are lower. These caches can be in cavities in trees, as well as in the squirrels' nest. Lichens and seeds are commonly cached.{{citation needed|date=October 2023}}