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Autor:
Alexey Druzyaka, Patricia Szczys, Jan van der Winden, Karl A. Lamothe, Valeri Siokhin, Martin J. M. Poot
Publikováno v:
Journal of Ornithology. 158:365-378
The Eurasian Black Tern, Chlidonias niger niger, nests in marshes continuously distributed across Eurasia, but migration routes, staging sites, and non-breeding distributions are not well understood. In western Europe some populations have declined s