Premium Services      Eastern Gray Squirrel (Sciurus carolinensis) Hand-colored lithograph after John James Audubon From: J. J. Audubon and John Bachman, The Quadrupeds of North America. Part 2 of 31 (New York, 1849–54) NYPL, Arents Collection of Books in Parts

Gray Squirrels abound in New York City parks and anywhere else where there are trees. They also invade attics, dig up flower bulbs, and devour tree and shrub buds. Because of the inbreeding that occurs when an animal population is confined to one area, not all Gray Squirrels are gray. Many in Central Park and the New York Botanical Garden are black, and cinnamon squirrels are common in Union Square Park.

Quadrupeds depicts and describes North American land mammals. Like the more famous Birds of America, it was published first in large format, as The Viviparous Quadrupeds of North America (1845–48), and subsequently in the smaller, octavo edition.