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By: Gwiazdowicz, Dariusz J., - Mizera, Tadeusz, - Skorupski, MType: ArticleIn: The journal of raptor researchVolume: 33Series:Issue: 3Date: 1999Page Range: 257--260Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Meyburg, Bernd-U - Meyburg, Christiane - Mizera, Tadeusz, - Maciorowski, Grzegorz - Kowalski, JanType: ArticleIn: The journal of raptor researchVolume: 39Series:Issue: 4Date: 2005Page Range: 462--466Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Wacławek, Krzysztof - Mizera, Tadeusz,Type: ArticleIn: The journal of raptor researchVolume: 36Series:Issue: 1Date: 2002Page Range: 25--28Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: