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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.
| 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 |
| Google Analytic Metrics | Metrics page |