Bolivian slaty antshrike

The Bolivian slaty antshrike (Thamnophilus sticturus) is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Bolivia, Brazil, and Paraguay.

The Bolivian slaty antshrike is about 14 cm (5.5 in) long and weighs 18 to 20 g (0.63 to 0.71 oz). Members of genus Thamnophilus are largish members of the antbird family; all have stout bills with a hook like those of true shrikes. This species exhibits significant sexual dimorphism. Adult males have a gray forehead and a black crown. Their back is gray with a few black spots and a hidden white patch between their scapulars. Their face is gray. Their wings, scapulars, and wing coverts are black with white spots and edges. Their tail is black with white tips and spots on the feathers. Their underparts are light gray with much white on the belly. Adult females have a bright reddish-brown crown and yellowish olive-brown upperparts. Their wings are dark brown with white spots and edges on the scapulars and pale buff edges on the flight feathers. Their tail is dark brown with white tips and spots on the feathers. Their underparts are white in the center and light yellowish brown across the breast and on the sides, flanks, and crissum.