a crested South American bird (Opisthocomus hoazin) of an order (Opisthocomiformes) with only one species: the wings of its young have claws
Origin of hoatzinAmerican Spanish from Nahuatl uatzin
A crested bird (Opisthocomus hoazin) of tropical South America having brown and buff plumage and a blue face. Juveniles have claws on the first and second digits of the wings.
Origin of hoatzinAmerican Spanish hoazín from Nahuatl uatzin pheasant or small game bird
From Nahuatl huāctzin (which probably designated a different bird).