Hummingbird

Hummingbirds are among the smallest of birds, most species measuring in the 7.5–13 cm (3–5 in) range. They hover in mid-air by rapidly flapping their wings 12–80 times per second. They are known as hummingbirds because of the humming sound created by their beating wings, which sometimes sounds like bees. For more information, visit the Wikipedia entry. Get back to Aves
Bee hummingbird	Bogotá sunangel	Swallow-tailed hummingbird	Sword-billed hummingbird

Unidentified hummingbirds