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Kalakotkas
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Kalakotkas

Lituanica 3: 136-138. Ewins, P. J. 1997: Osprey (Pandion haliaetus) populations in forested areas of North America: changes, their causes and management recommendations: Journal Raptor Research 31: 138-150. Forsman, D. 1999: The Raptors of Europe and the Middle East: 77-85 & 21-25. T & AD Poyser, London. Gensbol, B. 1984: Birds of Prey of Britain and Europe, North Africa and the Middle East: Collins, 265-270. London. Hake, M., Kjellen, N. & Alerstam, T. 2001: Satellite tracking of Swedish Ospreys Pandion haliaetus: autumn migration routes and orientation: Journal Avion Biology 32: 47-56. Houston, C. S. & Scott, F. 2001. Power poles assist range expansion of Ospreys in Saskatchhewan. Blue Jay 59: 182-188. Helander, B. & Mizera, T. 1997: Pandion haliaetus Osprey. P. Saurola, B Sablevicius. (toim.). The EBCC Atlas of European Breeding Birds: Their Distribution and Abundance: 176-177. T & AD Poyser, London. 47 Lohmus, A

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