Recoveries of Ospreys Banded in the United States, 1914-84
Poole AF and Agler B. 1987. Recoveries of Ospreys Banded in the United States, 1914-84. The Journal of Wildlife Management. 51(1):148-155
We used band recoveries to compare migration routes and schedules, wintering locations, and causes of mortality for 4 osprey (Pandion haliaetus) populations breeding in the United States. All populations started fall migration at about the same time, but ospreys from mid-Atlantic states migrated faster than those from northern states. Juveniles from northeastern states, but not mid-Atlantic where breeding is earlier, lagged behind their parents in fall. During winter, 36% of eastern and midwestern ospreys were recovered in South America north of the equator, 24% south of the equator, and 40% in the Caribbean basin, Central America, or the USA. Neither age nor breeding latitude influenced the latitude where these birds wintered. Western populations wintered north and west of others in Mexico and Central America. Ospreys migrated 2-3× faster in spring than in fall. Midwestern adults and eastern 2-year olds lagged behind eastern adults in spring. Fewer ospreys died from shooting after 1972 than during the 4 previous decades.
- Type
- Journal Article
- Authors
- Poole, Alan; Agler, Beverley
- Units
- VOYA
- Keywords
- Animal Studies, Banding, Breeding Population, Migration Patterns, Mortality, Osprey (Pandion haliaetus), Recovery, United States