Newly-discovered hummingbird already critically endangered
Blue-throated Hillstar, a species of hummingbird newly discovered in South America is already critically endangered with only a few hundred left in existence. Bird experts believe there are no more than 750 individual Blue-throated Hillstar hummingbirds left and the number could even be lower than 500. The hillstar hummingbirds live in high-elevation habitats in the Andes.