“Topography of a Bird,” from Elliot Coues, Key to North American Birds (Boston: Estes and Lauriat, 1884)
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A. C. Bagg & S. A. Eliot, Jr., Birds of the Connecticut Valley in Massachusetts (1937)
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Complete Annotated List Amherst Birds 1977/2008 (Fischer & Westover) [formerly Mass Audubon, Birds of Massachusetts (2020)]