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Ornithology / Cardinalidae / Bird flight / Bird migration / Indigo Bunting / Photoperiodism / White-crowned Sparrow / Biology / Passerina / Zoology


Bird Migration: Influence of Physiological State upon Celestial Orientation Author(s): Stephen T. Emlen Source: Science, New Series, Vol. 165, No[removed]Aug. 15, 1969), pp[removed]Published by: American Association for
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Document Date: 2008-08-22 16:04:11


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