Ash-throated antwren

The ash-throated antwren (Herpsilochmus parkeri) is a Vulnerable species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is endemic to Peru.

The ash-throated antwren is 11.5 to 13 cm (4.5 to 5.1 in) long; the holotype weighed 11.5 g (0.41 oz). Adult males have a black crown, a pale grayish white supercilium, a black streak through the eye, and pale grayish white ear coverts. Their back and rump are gray with dark gray to black scapulars that have wide white outer webs. They have a mixed black and white patch between the scapulars. Their wings are black with wide white tips on the coverts and brownish tips and white outer edges on the flight feathers. Their central tail feathers are black with white tips; the rest are black with white tips that are progressively larger to the outermost pair, whose outer half is white. Their chin is pale grayish white, their throat and breast pale gray, the center of their belly white, and their undertail coverts grayish white. The sides of their breast and flanks are a darker gray than the breast itself. Adult females have an orangish cinnamon forehead, a dark buff supercilium, and a black streak behind the eye. Their crown is dusky to black with a few thin white streaks. The sides of their neck are ochraceous buff, making a "collar" except for the black nape. Their back and rump are gray with a light ochraceous wash on the upper back and black, white, and gray scapulars. Their wings and tail are like the male's. Their chin, throat, and breast are ochraceous buff, their belly white, and their flanks and undertail coverts pale gray with a light buffy wash. Adults have a brown iris, a black maxilla, a grayish blue mandible, and blue-gray or grayish blue legs and feet.