Greater Ani vs Groove-billed Ani

Greater Ani

Crotophaga major

Medium148 gForest

The greater ani is about 46 cm (18 in) in length. Males weigh around 162 g (5.7 oz), females 145 g (5.1 oz). The adult is mainly blue-glossed black, with a long tail, massive ridged black bill, and a white iris. Immature birds have a brown iris. The calls include croaking and turkey-like gobbling kro-koro.

ID text from Wikipedia, CC BY-SA 4.0

Photo: (c) Christoph Moning, some rights reserved (CC BY), uploaded by Christoph Moning · cc-by

Groove-billed Ani

Crotophaga sulcirostris

Medium82 gUrban

The groove-billed ani is about 34 cm (13 in) long, and weighs 70–90 g (2.5–3.2 oz). Wingspan ranges 41–46 cm (16–18 in). It is completely black, with a very long tail almost as long as its body. It has a huge bill with lengthwise grooves running the length of the upper mandible. It is very similar to the smooth-billed ani, some specimens of which have bills as small as the groove-billed and with grooves on the basal half. The two species are best distinguished by voice and range. In flight, the ani alternates between quick, choppy flaps and short glides.

ID text from Wikipedia, CC BY-SA 4.0

Recording: Niels Krabbe · CC BY-SA 4.0

Photo: marlin harms · CC BY 2.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Greater Ani and Groove-billed Ani.