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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
First page:
155
Last page:
164
Number of Pages:
10