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Rough-legged Buzzard Buteo lagopus wintering in central eastern Poland: population structure by age and sex, and the effect of weather conditions

Zbigniew Kasprzykowski, Auteur ; Pawel Ciesluk, Auteur

Dans Ornis Fennica (88(2) 2011)

Conditions at wintering grounds affect the numbers of birds of prey to various extents. Weather may influence the latitudinal winter distribution of short-distance migrants, such as the Rough-legged Buzzard, with respect to age and sex. Inventor[...]

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