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Migration, home range, and important use areas of Florida sub-adult bald eagles

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Abstract

Long distance movements of Bald Eagles (Haliaeetus leucocephalus) have prevented a thorough documentation of their migration when monitored with traditional methods of banding and radio telemetry. I used satellite telemetry to determine diurnal and nocturnal important use areas (IUAs), migration routes, stopover sites, and home ranges of 69 migratory and non-migratory Florida sub-adult Bald Eagles. I located 151 daytime IUAs in 20 states and provinces, and 50 nocturnal roosts in 8 states and provinces. There was no difference in coarse home range size of migratory eagles between sexes in winter or summer (2-way ANOVA sex x season). Coarse home ranges were larger in winter ( x = 25,218 km2, 95% CI: 13,015 ? 37,421) than summer ( x = 6,166 km2, 95% CI: 2,696 ? 9,637; F1,64 = 4.03, P = 0.01). Eagles made equal use of Coastal Plain (n = 24) and Appalachian Mountain (n = 26) migratory routes during the first migration north. I recommend conserving nocturnal roosts and undeveloped shoreline forest within IUAs for sustained recruitment of Florida Bald Eagles.

Suggested Citation

Mojica, E., 2006, Migration, home range, and important use areas of Florida sub-adult bald eagles, ix, 87.

Publication type Book
Title Migration, home range, and important use areas of Florida sub-adult bald eagles
Year Published 2006
Language English
Publisher M.S. thesis, University of Georgia
Publisher location Athens, Georgia
Contributing office(s) Patuxent Wildlife Research Center
Description ix, 87
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