Description wikipedia

The white-throated flycatcher (Empidonax albigularis) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Mexico and every country in Central America. The white-throated flycatcher is 12 to 14 cm (4.7 to 5.5 in) long. Three individuals weighed 10.4 to 11 g (0.37 to 0.39 oz). The sexes are alike. Adults of the nominate subspecies have a brownish olive or olive brown crown and dull buffy-white lores and eye-ring on an otherwise paler brownish olive or olive brown face. Their upperparts are brownish olive or olive brown. Their tail is deep grayish brown with light brownish olive on the feather edges. Their wings are mostly a darker grayish brown than the upperparts, with wide light buffy brown or brownish buff tips on the median and greater coverts that show prominently as two wing bars. The wing's secondaries have pale buffy grayish or grayish buff edges. Their chin and throat are dull white, their breast buffy olive brownish that is paler on the sides and flanks, their belly pale buffy yellow or yellowish buff, and their undertail coverts brownish buff. They have a dark brown iris, a black maxilla, a pink-orange or yellowish pink mandible often with a dusky outer half, and blackish legs and feet. Immature birds have more brownish upperparts and more buffy underparts than adults, with cinnamon wing bars and pale buffy brown edges on the secondaries. Subspecies E. a. timidus is slightly larger than the nominate with paler upperparts, less buffy wing bars, and brighter buffy-yellowish flanks. E. a. australis has slightly more olivaceous (less brown) upperparts than the nominate, with whiter lores, eye-ring, and wing bars, a less brownish breast, and yellower belly, flanks, and vent area. "A comparative review of photos from the Macaulay Library across the species' range does not appear to support these phenotypic differences, and a taxonomic review of subspecies may be in order."