Red-throated Ant-tanager are 19 cm long and weigh 40 g. Adult males are dull dusky red, somewhat paler below, and with a bright red throat and central crown. The female is brownish olive, paler and greyer below, and with a yellow throat and small dull yellow crown stripe. Young birds are brown and lack the throat and crown patches. (wikipedia)
It prefers thickety growth along forest edge, including banks of streams and rivers, overgrown plantations and dense , shady second growth.