D’Orbigny’s Chat-Tyrant

D'Orbigny's chat-tyrant (Ochthoeca oenanthoides) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Bolivia, Chile, and Peru. == Taxonomy and systematics == D'Orbigny's chat-tyrant was originally described as "F[luvicola] OEnanthoides". It has two subspecies, the nominate O. o. oenanthoides (D'Orbigny & Lafresnaye, 1837) and O. o. polionota (Sclater, PL & Salvin, 1870). == Description == D'Orbigny's chat-tyrant is 15 to 15.5 cm (5.9 to 6.1 in) long. The sexes have the same plumage. Adults of the nominate subspecies have a grayish or grayish brown crown, a wide whitish supercilium that begins at the lores and extends well past the eye, and a blackish "mask". Their upperparts are grayish brown or grayish. Their wings are a duskier grayish brown with a weak grayish cinnamon wing bar. The wing's secondaries have thin white edges and their tertials grayish cinnamon edges. Their tail is dusky grayish brown with white outer webs of the outermost feathers. Their throat is grayish, their breast dusky cinnamon, their lower belly deep cinnamon, and their vent white or grayish white. Juveniles have a creamy white supercilium. Subspecies O. o. polionota is overall darker than the nominate. It has sooty upperparts.…