-
By: Kaufmann, Gerald WType: ArticleIn: The Canadian field-naturalistVolume: 103Series:Issue: 2Date: 1989Page Range: 270--282Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
-
By: Kaufmann, Gerald WType: ArticleIn: The Wilson bulletinVolume: 95Series:Issue: 1Date: 1983Page Range: 42--59Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
-
By: Kaufmann, Gerald WType: ArticleIn: The Wilson bulletinVolume: 99Series:Issue: 3Date: 1987Page Range: 432--440Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: