Hummingbirds amazing birds

Hummingbirds are birds native to the Americas and comprise the biological family Trochilidae. ... They are small birds, with most species measuring 7.5–13 cm (3–5 in) in length. The smallest extant hummingbird species is the 5 cm (2.0 in) bee hummingbird, which weighs less than 2.0 g (0.07 oz).