The green mango (Anthracothorax viridis) is a large species of hummingbird endemic to the main island of Puerto Rico. It is usually found in the mountainous regions of the island, often in coffee and other kind of plantations. They usually feed on the nectar found in Heliconia flowers.^[3] Their feather coloration is mainly solid dark green with a dark blue and black tail, but solid purple-black birds are common. Females are less glossy and females have very small white tips at the tail ends . . .^[4]

https://en.wikipedia.org/wiki/Green_mango