Great Basin Naturalist
Abstract
Analysis of Audubon Society Christmas bird count data and certain environmental variables shows the degree to which the Black-billed Magpie is a bird of cool arid regions in North America. The abundance and distribution of this species appear to be limited by two major climatic barriers: increasing summer temperatures in the Southwest and increasing summer humidity and precipitation on the central plains.
Recommended Citation
Bock, Carl E. and Lepthien, Larry W.
(1975)
"Distribution and abundance of the Black-billed Magpie (Pica pica) in North America,"
Great Basin Naturalist: Vol. 35:
No.
3, Article 2.
Available at:
https://scholarsarchive.byu.edu/gbn/vol35/iss3/2
COinS