About Crotophaga major Gmelin, 1788
Description: The greater ani (Crotophaga major Gmelin, 1788) measures around 46 cm (18 in) in total length. Males weigh approximately 162 g (5.7 oz), while females weigh around 145 g (5.1 oz). Adult greater anis are predominantly glossy blue-black, with a long tail, a large ridged black bill, and a white iris. Immature birds have brown irises. Their vocalizations include croaking calls and turkey-like gobbling kro-koro sounds. Distribution and habitat: This species breeds across a range extending from Panama and Trinidad through tropical South America to northern Argentina. It occupies mangrove swamps, semi-open woodland located near water, and forest edges. It behaves as a seasonal migrant in at least some portions of its geographic range.
