Yellow-rumped Antwren

The yellow-rumped antwren (Euchrepomis sharpei) is Near Threatened species of bird in subfamily Euchrepomidinae of family Thamnophilidae, the "typical antbirds". It is found in Bolivia and Peru. == Taxonomy and systematics == The yellow-rumped antwren was described by the German ornithologist Hans von Berlepsch in 1901 and given the binomial name Terenura sharpei. There it remained until the current genus Euchrepomis was created in 2012 following phylogenetic analysis. The yellow-rumped antwren is monotypic. == Description == The yellow-rumped antwren is 9.5 to 10.5 cm (3.7 to 4.1 in) long and weighs about 7 to 8 g (0.25 to 0.28 oz). It is a small and slim antwren with a thin bill and a longish tail. The sexes have different plumage. Adult males have a grayish white supercilium and a thin dark line through the eye on an otherwise pale gray face. Their crown and nape are black, their back olive, and their lower back and rump bright yellow with black edges on the back feathers. Their tail is grayish olive. Their wing coverts are blackish gray with yellow tips that form two bars on the closed wing, their flight feathers blackish gray with an olive wash, and the bend of…