Dusky Flycatcher illustration
Birdsong field guide

Dusky Flycatcher

Empidonax oberholseri

The Dusky Flycatcher is a small, grayish-olive tyrant flycatcher of the western United States, recognized by its inconspicuous plumage and preference for brushy montane habitats.

What it sounds like

A three-part song consisting of a sharp 'whit,' a high-pitched 'seepit,' and a lower, burry 'churp,' delivered with a deliberate rhythm.

Reference call, compare with what you heard
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Rec. Scott Olmstead · United StatesCC BY-NC-SAXeno-canto

Field notes

  • It is morphologically nearly identical to the Hammond’s Flycatcher but typically occupies lower, brushier elevations rather than dense fir canopies.
  • The species is known for a characteristic downward tail-pumping motion while perched, helping distinguish it from similar Empidonax species.
  • Identification in the field often relies on the bill shape, which features a mostly orange-pink lower mandible and a medium length relative to its relatives.
  • The female alone constructs the cup-shaped nest, usually situated in the crotch of a shrub or small tree such as mountain mahogany or willow.
  • Its scientific name, oberholseri, honors the prolific American ornithologist Harry C. Oberholser who described several hundred avian taxa.
Habitat
Mountain brushlands, open coniferous forests with shrubby understories, and willow thickets.
Range
Breeds from British Columbia and Alberta south through the western US to California and New Mexico; winters in Mexico.

Similar & commonly confused birds

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