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 Date: 2012-12-21 12:16:17Birds of North America Ornithology Dark-eyed Junco Finch Bird migration Polymorphism Gray-crowned Rosy Finch Pine Siskin Zoology House Finch Leucosticte |
 | There is much to be learned about the behavior and breeding biology of many bird species, but, because of the inaccessibility of much of their habitats, rosy-finches pose a unique challenge. In the White River National FDocID: R9mO - View Document |
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