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Article

Seasonal movements and environmental triggers to fall migration of sage sparrows

Kurt A. Fesenmyer, Auteur ; Steven T. Knick, Auteur

Dans Wilson Journal of Ornithology (The) (123(4) 2011)

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Article

Spatial structure in the diet of imperial eagles Aquila heliaca in Kazakhstan

Todd E. Katzner, Auteur ; Evgeny A. Bragin, Auteur ; Steven T. Knick, Auteur ; Andrew T. Smith, Auteur

Dans Journal of Avian Biology (37(6) NOV 2006)

We evaluated the relationship between spatial variability in prey and food habits of eastern imperial eagles Aquila heliaca at a 90,000 ha national nature reserve in north-central Kazakhstan. Eagle diet varied greatly within the population and t[...]

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