Napaeozapus insignis fructectanus. Woodland Jumping Mouse.
Wet hardwood forest, 1.
Dry hardwood forest, 6.
Three were taken in the Cisco Lake Region and four in the Little Girl's Point Region, all in heavy forest.
Neither of two adult females taken August 8 and 10 contained embryos.
Erethizon dorsatum dorsatum. Porcupine.
Forest—shore, 13.
Wet hardwood forest, 10.
Dry hardwood forest, 17.
Shrub stage, 5.
Paper birch—aspen stage, 10.
Overflow swamp, 5.
Edificarian, 1.
Common at all camps. Many were taken in traps set for carnivores. Well-marked trails at the edges of lakes and streams through the forests are evidently made mostly by these animals. It is detested by the inhabitants of the region, chiefly for the damage done to any woodwork which contains the least amount of salt.
Porcupines spend a considerable amount of time inside hollow linden, yellow birch, and hemlock trees, as shown by the large piles of droppings noted at the lower openings of numerous such hollow trees.
June 30, and again on July 2, young individuals were closely observed while feeding on the leaves of the yellow water lily. These individuals were on the logs in an overflow swamp, and they reached down with a fore foot into the water to secure the food, which was then presented to the mouth with the same foot. One of these porcupines seemed to be very disinclined to wet his feet, except the fore feet in reaching for food; the other individual waded out on a log which was submerged several inches, but he showed a ludicrous determination to hold the tail up out of the water.
A juvenile weighing only 914 grams was taken as late as July 21 at Fish-hawk Lake, but no embryos were found in the period between June 29 and September 3. It is often active throughout the day as well as in the night.