Number of breeding populations of Greater and Lesser Spotted Eagles in Northern
Byelorussia. - V.V. Ivanovsky, I.V. Bashkirov. - Berkut. 11 (1). 2002. - P.
34-47.
Data were collected in Vitebsk region (40 100 km2) in 2000–2001. Methods
of counts of birds of prey are discussed. Spotted eagles were counted on study
plots from points with round outlook (37 plots with 162 count points, total
area 2548,5 km2). Population of Lesser Spotted Eagle is estimated in 1340–1380
breeding pairs, Greater Spotted Eagle – 30–40 breeding pairs. These
two species have different habitats. Greater Spotted Eagle were found only on
large marshes in flood plains of rivers and lakes. Lesser Spotted Eagle prefers
small open areas (hayfields, fields, glades, meliorated mires), edged by deciduous
or mixed paludal forests. It can nest near settlements. Greater Spotted Eagle
breeds as a rule in thinly populated areas, difficult for access. Population
density of Lesser Spotted Eagle fluctuated since 0,12 to 1,25 pairs/10 km2,
Greater Spotted Eagle – 0,09 to 0,38. [Russian].
Key words: Greater Spotted Eagle, Lesser Spotted Eagle, Aquila clanga,
Aquila pomarina, Northern Byelorussia, count, number, habitat.
Address: V.V. Ivanovsky, Pobedy str. 15-4-87, 210032 Vitebsk, Belarus;
e-mail: ivanovski@tut.by.
