black-tailed whistler Pachycephala melanura

Chunky, rounded songbird with heavy thick bill. Found across a wide range of habitats across its range: largely mangroves in Australia, but also inhabits freshwater swamps in New Guinea and forests and forest edge on smaller islands. Male has an olive-yellow back, black head, white chin, bright yellow underparts, and thick yellow hindcollar. Female plain gray above, paler gray below, with yellow undertail and in some subspecies a yellow belly. Overlaps very marginally with the very similar Golden Whistler in eastern Queensland, but note mangrove habitat as well as slightly longer bill and darker uppertail; also note significant yellow on underparts in female and different song. Vocalizations include variations on whistled songs, sometimes with a whip-like ending.