HOATZIN

[hoa.tzin] n [Nahuatl huactzin the laughing falcon (Herpetotheres cachinnans)] (1661): a crested large So. American bird (Opisthocomos hoazin syn. O. hoatzin) with blue facial skin, red eyes, brown plumage marked with white above, and claws on the first and second digits of the wing when young