About Curruca subcoerulea (Vieillot, 1817)
Scientific name: Curruca subcoerulea (Vieillot, 1817), commonly known as the chestnut-vented warbler. This bird measures 14–15 cm in length and weighs approximately 16 g. Its upperparts are grey-brown, and its tail is black with a broad white band at the tip. It has a distinct white eye ring. Its throat is grey with heavy dark streaking, while its breast and belly are grey, and its vent area is bright chestnut. It has black legs and grey eyes. The sexes have similar plumage, but juvenile chestnut-vented warblers have an unstreaked throat. The call of this species is a loud fluted cheerup-chee-chee. The only similar species is Layard's warbler, Curruca layardi, which differs by being paler, having more white in the tail, and lacking the characteristic chestnut vent.
