Expansion of the Goosander Mergus merganser in the western Carpathians in 1999–2009

Łukasz Kajtoch, Tomasz Baziak, Szymon Mazgaj, Agata Piestrzyńska-Kajtoch

Ornis Polonica 2010, 51: 302–304

https://doi.org/10.12657/ornis.2010.4.7

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