A parrot that lives in tunnels? That is the burrowing parrot, from Argentina and Chile. Its Spanish name comes from the barrancas, the earthen walls of riverbanks and cliffs, where it digs its nests with its beak and feet. Some tunnels are more than three meters deep. On the coast of Argentine Patagonia lies the largest parrot colony in the world: tens of thousands of nests on a single cliff. Imagine the racket. It has an olive-green back, a yellow belly with a red patch and a pale band across the chest, and lives in large, noisy, highly sociable flocks. Year after year, the pairs return to the same cliff to breed. A parrot of the steppes, far from the jungle, that has made the earth its home.