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Denver W. Holt, Auteur ; Michael T. Maples, Auteur ; Julie L. Petersen-Parret, Auteur ; Mark Korti, Auteur ; Mathew Seidensticker, Auteur ; Kathy Gray, AuteurDans Ardea (97(4) 2009)Snowy Owl Bubo scandiacus nest mounds from Barrow, Alaska, were characterized measuring several variables from 114 nests and 2280 random mounds.. Mound height appeared to be the most important trait, as nest mounds averaged about 1 m tall, and w[...]
Article
Denver W. Holt, Auteur ; Anne Paulson, Auteur ; L. Michael Romero, AuteurDans Ardea (97(4) 2009)Long-eared Owl Asio otus nestlings usually depart from their nests at approximately 22 days of age, and cannot fly until approximately 35 days of age. Corticosterone has been implicated as a mechanism influencing nest departure in many avian spe[...]
Article
L. Michael Romero, Auteur ; Denver W. Holt, Auteur ; Julie L. Petersen, AuteurDans Ardea (97(4) 2009)Long-eared Owls Asio otus were flushed and captured from communal winter roosts and nesting seasons to assess both initial and stress-induced corticosterone concentrations. We examined blood samples from 16 males and 8 females in the winter, and[...]
