La Tour du Valat

Article

Bocian czarny Ciconia nigra (L) w Polsce = The black stork Ciconia nigra (L) in Poland

J. Bednorz 1974

Ochrona Przyrody 39 p201-243

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Article

Effect of prior nesting success on future nest occupation in Raven Corvus corax

P. Tryjanowski, Auteur ; A. Surmacki, Auteur ; J. Bednorz, Auteur

Dans Ardea (92(2) FAL 2004)

Based on the fate of 48 nests of Raven Corvus corax we tested the hypothesis that low return rates of Raven were caused by unsuccessful nesting attempts in previous seasons. Ravens nested on electrical power pylons in 19961998 in an intensively [...]

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