| |
| | Decline in Numbers of Wood Warblers in Spring and Autumn Migrations through Ohio |
 | | For both spring and autumn the total for 1974-79 was 9517, and the total for 1980-85 was 5660, with a decline of 3857 (40.5%). |
 | | With decline closely similar in spring and autumn, strength is given also to estimates for percentages decline among Orange-crowned, Blackburnian, and Bay- breasted warblers, declines in spring and autumn being, respectively, 72.7 and 73.4%, 57.9 and 56.3%, 18.5 and 23.3%. |
 | | The samples of Tennessee Warblers were reasonably large, with 284 and 268 for spring and 351 and 135 for autumn, yet wide difference {5.6 and 61.5%) occurred in the percent decline in spring and autumn. |
| elibrary.unm.edu /sora/NABB/v012n02/p0058-p0060.html (1281 words) |
|