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1
Greater pewee : Contopus pertinax
Philadelphia, PA : Birds of North America, Inc., 1999Format: Book
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2
Western wood-pewee : Contopus sordidulus
Philadelphia, PA : Birds of North America, Inc., 1999Format: Book
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3
Olive-sided flycatcher : Contopus cooperi
Philadelphia, PA : Birds of North America, Inc., 2000Format: Book
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4
Eastern wood-pewee : Contopus virens
Washington, D.C. : Philadelphia, PA : American Ornithologists' Union ; Academy of Natural Sciences, 1996Format: Book
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