The Puerto Rican Parrot is the only remaining native parrot in US territory and one of the 10 most endangered bird species in the world. It has green feathers with black edges, a red forehead, and white ovals around the eyes. It was abundant at the time of Columbus’ arrival, but its numbers declined with the clearing of Puerto Rico’s virgin forests to make way for agricultural, mainly sugar cane, production. In 1975, the population reached an absolute low of how many individuals? Discuss