Scientific articles \ Mathematics. Natural sciences \ Zoology \ Systematic zoology

On sharply declining in number of the redwing the black scoter Melanitta nigra in Bulgaria

Nankinov D.N.

Journal: Русский орнитологический журнал @ornis

Article in issue: 414 т.17, 2008.

Free access

Short address: https://sciup.org/140150895

IDS: 140150895

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