Set in 4.8 hectares (12 acres) of lush subtropical rainforest, the Bird Park offers the best bird-watching in Iguaçu. A large number of birds are in huge walk-through aviaries, some 24m (80 ft.) tall and at least 60m (200 ft.) long, allowing visitors to watch the birds interact as they go about their daily routines. Highlights include the toucans and multicolored tanagers as well as a Pantanal aviary with roseate spoonbills, herons, and egrets. Signage is in English. The best time to visit is early in the day when the birds are most active. Allow 2 hours.