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The Imperial Eagle in the Samara District, Russia. – Raptors Conservation 20

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Full reference: Karyakin I.V., Pazhenkov A.S. The Imperial Eagle in the Samara District, Russia. . – Raptors Conservation. 2010. № 20. Р. 97-118.

Abstract

There are the results of surveys of the Imperial Eagle (Aquila heliaca) in the Samara district in 1995-2010. By 2010, the Imperial Eagle has been known to occupy 101 breeding territories from 117 ones discovered during the entire period of surveys in the Samara district. Eagles have abandoned 16 breeding territories, a territory has recovered during the period of surveys, birds have relocated in 6 territories, and 8 territories have appeared in the area, where eagles were not observed earlier. Eagles regular breeding during 15 years were observed in 73.5% of breeding territories. A total of 120-140 pairs are estimated to breed in the Samara district. The distance between nests and the centers of next breeding territories of eagles ranged from 2.08 to 19.96 km, on average (n=73) 7.82±3.49 km. There were 106 nests discovered in 97 breeding territories (82.91%) from 117 ones: the main part of them was located on pines (56.6%). The average brood size was 1.71±0.67 nestlings (n=35; range 1-3 nestlings). Usually broods consisted of 2 nestlings (48.57%).

Keywords

Raptors, birds of prey, Imperial Eagle, Aquila heliaca, distribution, population status, breeding biology

References

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