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CORNELL LAB OF ORNITHOLOGY
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AMERICAN ORNITHOLOGISTS' UNION
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Pacific-slope Flycatcher
Empidonax
difficilis
Order
PASSERIFORMES
– Family
TYRANNIDAE
Issue No.
556a
Authors:
Lowther, Peter E.
Articles
Multimedia
References
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Adult Pacific-slope Flycatcher; Kern Co., CA; July
Adult Cordilleran Flycatcher; Mt. Lemmon, Arizona, July
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