Chestnut-backed Antshrike

The chestnut-backed antshrike (Thamnophilus palliatus) is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Bolivia, Brazil, and Peru. == Taxonomy and systematics == The chestnut-backed antshrike has these four subspecies: T. p. palliatus (Lichtenstein, MHC, 1823) T. p. vestitus (Lesson, RP, 1831) T. p. puncticeps Sclater, PL, 1890 T. p. similis Zimmer, JT, 1933 What is now the lined antshrike (T. tenuepunctatus) was previously treated by several authors as a subspecies of the chestnut-backed antshrike. A study published in 2007 confirmed that the lined antshrike is a full species and sister to the chestnut-backed. == Description == The lined antshrike is 16 to 17 cm (6.3 to 6.7 in) long and weighs 26 to 28 g (0.92 to 0.99 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 some sexual dimorphism though both sexes have a crest. Adult males of the nominate subspecies T. p. palliatus have a black crown with white spots on the forehead. Their face and nape are black with white spots. Their upperparts, wings, and tail are rufous-brown. Their…