White-tailed Sea Eagle Movements in Central Asia
Behavior of young birds can have important consequences for population dynamics. To study movements and habitat associations of white-tailed sea eagles hatched in a National Nature Reserve in north-central Kazakhstan, researchers telemetered three juvenile sea eagles to track their autumnal post-fledging movements.
Once eagles left their nest sites, they spent a large proportion of time in stopover and tended to have poor flight performance, possibly because they were following water sources where food was plentiful. All three eagles traveled south, flying on average 25-108 kilometers each day. The eagles generally traveled near mosaics of forest, open areas, and water, and they rarely used areas with little vegetation. This is the first study of movements of white-tailed sea eagles in arid central Asia. Findings provide insight into potential factors that limit eagles’ movement and how these birds interact with their environment over long distances.
Bragin, E.A., Poessel, S.A., Lanzone, M.J., Katzner, T.E., 2018, Post-fledging movements and habitat associations of White-tailed Sea Eagles (Haliaeetus albicilla) in central Asia: The Wilson Journal of Ornithology, v. 130, no. 3, p. 784-788, https://doi.org/10.1676/17-055.1
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