Reappraisal of the Winter Bird-Population Study technique
By: C.S. Robbins
Edited by: C. John Ralph and J. Michael Scott
Links
- The Publications Warehouse does not have links to digital versions of this publication at this time
- Download citation as: RIS | Dublin Core
Abstract
Standardized morning and afternoon counts were conducted in two deciduous forest plots during seven winters. Morning counts yielded more species than afternoon counts, as well as higher counts of most species. A minimum of eight visits is recommended. Six visits yielded 2% to 5% fewer species, depending on the size and bird population of the study plot. Cumulative means for individual species varied erratically for most species when the number of visits was less than seven.
| Publication type | Book chapter |
|---|---|
| Publication Subtype | Book Chapter |
| Title | Reappraisal of the Winter Bird-Population Study technique |
| Year Published | 1981 |
| Language | English |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | x, 630 |
| Larger Work Type | Book |
| Larger Work Subtype | Other Government Series |
| Larger Work Title | Estimating Numbers of Terrestrial Birds |
| First page | 52 |
| Last page | 57 |
| Google Analytic Metrics | Metrics page |