Spread over the lush grounds of Zoo Ave is a collection of large cages holding toucans, hawks, and parrots (the macaws range free), not to mention crocodiles, caimans, a boa constrictor, turtles, monkeys, wildcats, and other interesting critters. The zoo, the best in Costa Rica, runs a breeding project for rare and endangered birds, all of which are destined for eventual release. It has 115 bird species, including such rare ones as the quetzal, fiery-billed aracari, several types of eagles, and even ostriches. An impressive mural at the back of the facility shows Costa Rica's 850 bird species painted to scale. Unfortunately, exhibits here are labeled in Spanish only.