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Pacific-Slope Flycatcher

Empidonax difficilis (species), “Western Flycatcher”

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The Pacific-slope flycatcher (Empidonax difficilis) is a small insectivorous bird of the family Tyrannidae. It is native to coastal regions of western North America, including the Pacific Ocean and the southern Gulf of California, as far north as British Columbia and southern Alaska, but is replaced in the inland regions by the Cordilleran flycatcher. These two species were classified as a single species, commonly called the western flycatcher, by the American Ornithologists’ Union until 1989. In winter, both species migrate south to Mexico, where they are virtually indistinguishable from one another.

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Range Maps show field notes recorded by Natural Atlas contributors and other datasets via GBIF.org

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