Nutritional stress and body condition in the Great Gray Owl (Strix nebulosa) during winter irruptive migrations

By Graves Gary R.   Newsome Seth D.   Willard David E.   Grosshuesch David A.   Wurzel William W.   Fogel Marilyn L.  

Canadian Journal of Zoology, Vol. 90, Iss. 7, 2012-07 ,pp. : 787-797

NRC Research Press

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Habitat and landscape characteristics affecting the occurrence of Ural Owls Strix uralensis in an agroforestry mosaic

By Bylicka Marta   Kajtoch Łukasz   Figarski Tomasz  

Acta Ornithologica, Vol. 45, Iss. 1, 2010-06 ,pp. : 33-42

Museum and Institute of Zoology, Polish Academy of Sciences

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Major roads have a negative impact on the Tawny Owl Strix aluco and the Little Owl Athene noctua populations

By Silva Clara C.   Lourenço Rui   Godinho Sérgio   Gomes Edgar   Sabino-Marques Helena   Medinas Denis   Neves Vânia   Silva Carmo   Rabaça João E.   Mira António  

Acta Ornithologica, Vol. 47, Iss. 1, 2012-06 ,pp. : 47-54

Museum and Institute of Zoology, Polish Academy of Sciences

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Feeding effort of male Tawny Owls Strix aluco follows a fixed schedule: a field experiment in the early nestling period

By Sasvári Lajos   Hegyi Zoltán  

Acta Ornithologica, Vol. 45, Iss. 2, 2010-12 ,pp. : 181-188

Museum and Institute of Zoology, Polish Academy of Sciences

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Plasma testosterone profile of male Tawny Owls Strix aluco in relation to breeding density, breeding experience, and offspring provision

By Sasvári Lajos   Péczely Péter   Hegyi Zoltán  

Acta Ornithologica, Vol. 44, Iss. 1, 2009-06 ,pp. : 59-68

Museum and Institute of Zoology, Polish Academy of Sciences

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