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By: Vanderwerf, Eric A.,Type: ArticleIn: The Wilson bulletinVolume: 115Series:Issue: 3Date: 2003Page Range: 258--262Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Lees, Alexander C - Vanderwerf, Eric A.,Type: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 131Series:Issue: 3Date: 2011Page Range: 212--217Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Miller, Edward H - Vanderwerf, Eric A., - Mcpherson, LesType: ArticleIn: The Wilson bulletinVolume: 115Series:Issue: 4Date: 2003Page Range: 455--463Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: