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By: Olendorff, R RType: ArticleIn: Raptor researchVolume: 6Series:Issue: 1Date: 1972Page Range: 6--10Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]Subjects:
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By: Kochert, Michael N. (Michael Nicholas) - Olendorff, R RType: ArticleIn: The journal of raptor researchVolume: 33Series:Issue: 1Date: 1999Page Range: 39--42Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: