Black-headed Antthrush

The black-headed antthrush is about 18 cm (7.1 in) long; four individuals weighed 58 to 68 g (2.0 to 2.4 oz). The sexes have the same plumage. Adults of the nominate subspecies have a dark dusky brown to blackish crown. Their face and throat are black with a ring of bluish white bare skin around the eye. Their back, rump, and wings are dark chestnut-brown, their uppertail coverts dark rufescent brown, and their tail black. Their flight feathers have dusky inner edges and a wide cinnamon band at the base. Their upper breast is blackish gray, their belly gray, and their undertail coverts rufous. Voice: The black-headed antthrush's song is "a trill of c. 10 notes per second at 1·5–2 kHz, first falling, then rising in pitch". Both sexes sing, commonly from the ground. Its call is "a short 'chweep' ".