If you ever think you work hard for the food you eat, try tracking a fisher! I would estimate that I followed a fisher’s tracks for at least three miles today and other than stopping to mark its territory once, and investigate a log or two, there was not a sign of its finding a thing to eat. Fishers travel widely in search of prey — one was recorded travelling 56 miles in three days. The fisher I followed traveled through prime snowshoe hare (their most common prey item) habitat, as well as areas where porcupines have been known to den. A fisher’s food requirements are about one snowshoe hare per week, a squirrel or two per week, or 2 – 22 mice per day. A porcupine will feed a fisher for a month or so. (Note snowshoe hare tracks on bottom left of photograph, and fisher tracks running diagonally across the image, where the fisher left its mark.)
Birds and mammals that rely on beechnuts as a staple of their diet include black bears, white-tailed deer, fishers, porcupines, wild turkeys, ruffed grouse, wood ducks, tufted titmice, and numerous small rodents, to name but a few. There is a good reason for this – beechnuts have about the same protein content as corn, but five times the fat content. Beechnuts also have nearly twice as much crude protein and twice the fat of white oak acorns and about the same fat content as red oak acorns. Given the number of husks and nuts that are on the forest floor this fall, it appears that this is a good year for beechnut mast, or seed production. Research has shown that high beechnut production in the fall is correlated with a high percentage of reproducing female black bears in the coming winter.