April 8, 2016 – Bee Hummingbird (Mellisuga helenae)
Requested by: the-sanguine-cynic
Found only in Cuba, these tiny hummingbirds are known as the smallest living bird species. Measuring around 1.9 to 2.3 inches (5 to 6 cm), they weigh less than a United States penny at about .05 to .06 ounces (1.6 to 1.9 grams). They eat nectar and some small insects, taking in about half of their body mass in food a day and as much as eight times their body mass in water. Females build cup-shaped nests from twigs, spiderwebs, and lichens, laying two tiny eggs which they incubate alone. They are classified as Near Threatened, mostly due to habitat loss and introduced predators.