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By: Carvalho Filho, Eduardo Pio Mendes de - Carvalho, Gustavo Diniz Mendes de - Carvalho, Carlos Eduardo AlencarType: ArticleIn: The journal of raptor researchVolume: 39Series:Issue: 1Date: 2005Page Range: 89--92Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: