Between visits to Iguassu Falls, check out another Foz do Iguacu attraction! The bird park on the Brazilian side of Iguassu Falls boats an impressive array of wildlife. It offers you the unique opportunity to step into several 8-foot- (2.5-meter) tall aviaries for an up-close look at their tropical inhabitants. There are more than 150 distinct species of birds, both indigenous to the Iguassu region and from other areas of the world. While the birds are the main attraction, other exhibits include snakes, lizards and butterflies!