Hummingbird
A female Ruby-throated hummingbird flexing its wings at The Oven in Central Park, New York City.
Hummingbird is a small nectar-feeding tropical bird that is able to hover and fly backward, typically having colorful iridescent plumage.
They are small birds, with most species measuring 7.5–13 cm (3–5 in) in length.
They are known as hummingbirds because of the humming sound created by their beating wings, which flap at high frequencies audible to humans. They hover in midair at rapid wing-flapping rates, which vary from around 12 beats per second in the largest species to around 80 per second in small hummingbirds. Of those species that have been measured during flying in wind tunnels, their top speeds exceed 15 m/s (54 km/h; 34 mph). During courtship, some male species dive from 30 metres (100 ft) of height above a female at speeds around 23 m/s (83 km/h; 51 mph).
--- wikipedia
Hummingbird
A female Ruby-throated hummingbird flexing its wings at The Oven in Central Park, New York City.
Hummingbird is a small nectar-feeding tropical bird that is able to hover and fly backward, typically having colorful iridescent plumage.
They are small birds, with most species measuring 7.5–13 cm (3–5 in) in length.
They are known as hummingbirds because of the humming sound created by their beating wings, which flap at high frequencies audible to humans. They hover in midair at rapid wing-flapping rates, which vary from around 12 beats per second in the largest species to around 80 per second in small hummingbirds. Of those species that have been measured during flying in wind tunnels, their top speeds exceed 15 m/s (54 km/h; 34 mph). During courtship, some male species dive from 30 metres (100 ft) of height above a female at speeds around 23 m/s (83 km/h; 51 mph).
--- wikipedia