Population trends of woodland birds from the North American Breeding Bird Survey

Wildlife Society Bulletin
4633_Peterjohn.pdf
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Abstract

Population trends of woodland birds were summarized from BBS data over 1966-1991, 1966-1979, and 1982-1991. For the entire woodland bird assemblage, increasing species outnumbered decreasing species in all regions except central North America during 1966-1991. However, the proportion of decreasing species increased in most regions during the 19821991 interval. This population trend was most apparent for Neotropical migrants with 15 increasing and 2 decreasing species during 1966-1979 but only 4 increasing and 16 decreasing species during 1980-1991. Short-distance migrants and permanent residents had nearly equal numbers of increasing and decreasing species during both intervals.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Population trends of woodland birds from the North American Breeding Bird Survey
Series title Wildlife Society Bulletin
Volume 22
Issue 2
Year Published 1994
Language English
Publisher U.S. Fish and Wildlife Service
Contributing office(s) Patuxent Wildlife Research Center
Description 155-164
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Wildlife Society Bulletin
First page 155
Last page 164