bee hummingbird

Are Hummingbirds Mammal? 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). What are hummingbirds