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By: Fyfe, Richard W. - Banasch, Ursula - Benavides, Virgilio - de Benavides, Nancy Hilgert - Luscombe, Anthony - Sánchez, Julio E.Type: ArticleIn: The Canadian field-naturalistVolume: 104Series:Issue: 2Date: 1990Page Range: 285--292Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Sandoval, Luis - Sanchez, Cesar - Biamonte, Esteban - Zook, James R. - Sánchez, Julio E. - Martinez, Daniel - Loth, DarylType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 130Series:Issue:Date: 2010Page Range: 237--245Publication Info: London, British Ornithologists' Club, 1893-Subjects: