At first glance, this bird is truly bizarre. Its feathery crest obscures its beak, making it appear mouthless. They live in the humid forests of South America and use boulders or rocky caves for breeding (hence their name).
Like the sage-grouse, these birds breed with a lek system. The males all group up, each with his own area, called a “court.” When a female visits a court, the male shows off his plumage for her in the hope that she’ll choose him as a mate.
