Title: Habits and interactions of North American three-toed woodpeckers (Picoides arcticus and Picoides tridactylus)
First published: 1974
Subjects: Behavior, Northern three-toed woodpecker, Black-backed three-toed woodpecker, Birds
Places: North America
LC classification: QL1 .A436 no. 2547, QL696.P56 .A436 no. 2547