Não informado. Records of New England Birds. Massachusetts Audubon Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Records of New England Birds. Lincoln, Mass: Massachusetts Audubon Society.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Records of New England Birds. Massachusetts Audubon Society.
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