About Emarginata sinuata (Sundevall, 1858)
The sickle-winged chat (scientific name Emarginata sinuata (Sundevall, 1858)) measures approximately 15 cm (5.9 in) in length, and weighs between 17–20 g (0.60–0.71 oz). Its upperparts are dark grey, while its wings are brown, and it has a rufous patch behind the eye. Its tail and rump are buff-pink, with an inverted black wedge at the tip of the tail. Its underparts are off-white, its short straight bill, legs, and feet are black, and its eye is brown. The sexes of this species look similar, but juvenile birds have buff tips on their feathers. The contrast between the species' dark upperparts and much paler underparts separates it from the familiar chat, which has more uniform coloration. Additionally, the pale salmon-buff color on the sickle-winged chat's rump only extends to the base of the tail, while the familiar chat's richer-colored hue reaches almost to the tip of the tail. This species produces a chak-chak call, and sings a warbled song.
