Issue 2010-1

Ornis Polonica 2010, 51: 1–13

The Black Woodpecker Dryocopus martius and the European Beech Fagus sylvatica as keystone species for the Stock Dove Columba oenas in western Poland

Ziemowit Kosiński, Elżbieta Bilińska, Julian Dereziński, Joanna Jeleń, Marcin Kempa

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Ornis Polonica 2010, 51: 14–20

Numbers and distribution of the Common Whitethroat Sylvia communis in the farmland landscape of south-western Wielkopolska in 1998–2008

Paweł Szymański

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Ornis Polonica 2010, 51: 21-29

Biometric analysis of the Coot Fulica atra from northern Poland

Włodzimierz Meissner

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Ornis Polonica 2010, 51: 30–42

Number and distribution of the Grey Heron Ardea cinerea colonies in northern Poland

Katarzyna Żółkoś, Włodzimierz Meissner, Marek Kalisiński, Ewa Górska, Maria Mellin, Iwona Ibron, Dariusz Wysocki

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Ornis Polonica 2010, 51: 43–55

Avifauna of the Middle Noteć River Valley and Bydgoszcz Canal – current state and changes in abundance

Przemysław Wylegała, Andrzej Batycki, Bogdan Rudzionek, Karol Drab, Mariusz Blank, Teresa Blank, Justyna Barteczka, Wiesław Bagiński, Andrzej Konopka

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Ornis Polonica 2010, 51: 56–57

Mystery bird 58: Black-eared Wheatear Oenanthe hispanica

Jan Lontkowski

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Ornis Polonica 2010, 51: 58-62

Numbers of waterfowl species on the Bay of Gdańsk in the period from September 2008 to April 2009

Włodzimierz Meissner, Piotr Rydzkowski

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Ornis Polonica 2010, 51: 63–76

Critically about some counts of breeding bird assemblages

Ludwik Tomiałojć

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