White-backed Woodpecker Dendrocopos leucotos and Three-toed Woodpecker Picoides tridactylus in the Beskid Średni Mountains (SE Poland)

Marcin Matysek, Łukasz Kajtoch

Ornis Polonica 2010, 51: 230–234

https://doi.org/10.12657/ornis.2010.3.6

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