Differences in Winter Range among Age-Sex Classes of Snowy Owls Nyctea scandiaca in North America
Autor: | Kerlinger, Paul, Lein, M. Ross |
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Zdroj: | Ornis Scandinavica (Scandinavian Journal of Ornithology), 1986 Mar 01. 17(1), 1-7. |
Databáze: | JSTOR Journals |
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