Monitoring Canadian bird populations with winter counts
Edited by: Erica H. Dunn, M.D. Cadman, and J.B. Falls
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Abstract
Two winter bird surveys in Canada have range-wide population monitoring potential: Christmas Bird Counts (CBCs) and Project FeederWatch (PFW). CBC trends are shown to be correlated to Breeding Bird Survey (BBS) trends, whether or not part of the winter range lies outside the CBC coverage area. Some species are poorly covered by this survey (e.g. seabirds, nocturnal species, and Neotropical migrants). Only eight Canadian breeding species that are not sampled by the BBS have their winter range well-covered by the CBC, but the CBC should be valuable as an independent source of trend data for many more species, including northern nesters with only marginal BBS coverage. More work is needed to show whether PFW trends match BBS trends; even if they do, PFW covers relatively few species, and most are monitored already by the BBS and/or CBC
Suggested Citation
Dunn, E.H., Sauer, J., 1997, Monitoring Canadian bird populations with winter counts, chap. of Monitoring bird populations: The Canadian experience, p. 49-55.
| Publication type | Book chapter |
|---|---|
| Publication Subtype | Book Chapter |
| Title | Monitoring Canadian bird populations with winter counts |
| Series number | 95 |
| Year Published | 1997 |
| Language | English |
| Publisher | Canadian Wildlife Service |
| Publisher location | Ottawa, Ontario |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 62 |
| Larger Work Type | Book |
| Larger Work Subtype | Other Government Series |
| Larger Work Title | Monitoring bird populations: The Canadian experience |
| First page | 49 |
| Last page | 55 |