The ash-throated flycatcher (Myiarchus cinerascens) is a passerine bird in the tyrant flycatcher family. It breeds in desert scrub, riparian forest, brushy pastures and open woodland from the western United States to central Mexico. It is a short-distance migrant, retreating from most of the U.S. and northern and central Mexico, spending the winter from southern Mexico to Honduras. This bird is also prone to wander, with single birds often seen outside its normal breeding range as far away as the east coast of North America.
The nest is built in a tree cavity or similar natural or man-made hole, and the normal clutch is three or four eggs.
Adult ash-throated flycatchers are 19–20 cm (7.5–7.9 in) long and weigh 24–31 g (0.85–1.09 oz). The upperparts are olive brown, with a darker head and short crest. The breast is gray and the belly is a very pale yellow. The brown tail feathers and wings have rufous outer webs, and there are two dull wing bars. The sexes are similar.