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By: Ruggiero, L F - Cheney, C DType: ArticleIn: Raptor researchVolume: 13Series:Issue: 2Date: 1979Page Range: 33--36Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]Subjects:
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By: Squires, J R - Ruggiero, L FType: ArticleIn: The journal of raptor researchVolume: 29Series:Issue: 1Date: 1995Page Range: 45--45Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Squires, J R - Ruggiero, L FType: ArticleIn: The journal of raptor researchVolume: 29Series:Issue: 1Date: 1995Page Range: 5--9Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Herren, V - Anderson, Stanley H. - Ruggiero, L FType: ArticleIn: The journal of raptor researchVolume: 30Series:Issue: 3Date: 1996Page Range: 123--129Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: