Black-capped Gnatcatcher, a New Breeding Bird for the United States; with a Key to the North American Species of Polioptila

Authors

Allan R. Phillips
Steven Speich
William Harrison

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Recommended Citation

Phillips, Allan R.; Speich, Steven; and Harrison, William (1973) "Black-capped Gnatcatcher, a New Breeding Bird for the United States; with a Key to the North American Species of Polioptila," The Auk: Vol. 90: Iss. 2, Article 1.
Available at: https://digitalcommons.usf.edu/auk/vol90/iss2/1