been identified in Cuyabeno, such as more than 350 fish species, including piranhas; a great variety of reptiles such as  anacondas ,  alligators  and river  turtles . Frequently observed species include various birds species, such as colorful parrots,  kingfishers  and  hoatzins  or Amazon eagle, which flaunts its 8-foot (2.4 m)-wide wingspan, and