Серый свистун Pachycephala simplex

Trim songbird with pointed bill, grayish above, pale below. In the Top End of the Northern Territory, back slightly browner; in north Queensland, back more greenish gray. Smaller and more slender than female Golden Whistler. Forages fairly low in dense vegetation such as mangroves, wetter forests, or swampy woodlands. Common song a ringing, two-noted whistle.