The smooth-billed ani (Crotophaga ani) is a species of bird in the family Crotophagidae. It is found in the tropical and subtropical regions of the Americas, from southern Mexico to northern Argentina and Uruguay. The smooth-billed ani is a medium-sized bird, with a length of about 30 cm (12 in). It has a long, slender body and a long, pointed tail. The plumage is black, with a glossy sheen. The bill is smooth and black, and the eyes are brown.
The smooth-billed ani is a social bird, and it is often found in flocks of up to 100 individuals. It is a noisy bird, and its calls are often heard in the rainforest. The smooth-billed ani is an omnivore, and its diet includes fruits, insects, and small vertebrates. It is also known to eat the eggs and chicks of other birds.