Description wikipedia

The dull-mantled antbird (Sipia laemosticta) is a perching bird species in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Colombia, Costa Rica, and Panama. The dull-mantled antbird is 12.5 to 15.0 cm (4.9 to 5.9 in) long and weighs about 25 g (0.88 oz). Adult males have a blackish gray to slate-black head, neck, and upper mantle. The rest of their upperparts are dark reddish brown, chestnut, or olive with a usually hidden white patch between their scapulars. Their flight feathers and tail are blackish brown with dark reddish brown edges. Their greater wing coverts are dark reddish brown with cinnamon or rufous tips; their median and lesser coverts are black with white tips. Their throat and chin are black, their sides, flanks, and undertail coverts are reddish brown, and the rest of their underparts are dark gray or slate. Adult females are similar to males with gray areas that are somewhat less blackish than the male's. Their interscapular patch is much smaller than the male's. Their median wing coverts have a cinnamon tinge. Their throat is black with many white spots or bars. Both sexes have a red iris and gray legs and feet. Based on one description of each sex, males apparently have a black bill and females a black maxilla and gray mandible. Young males have a brown wash on their head, faint buff mottling on their throat, and no black on their underparts.