Bee Hummingbird - the smallest bird in the world. Males of the bee hummingbird living on Cuba and on Isla de la Juventud, weigh 1,6g, and their length is 5,7cm, Half of length make a tail and a beak. Females are a bit larger
They fly extremely fast - up to 80 km/h. 80 wingbeats a second. At rest the heart of the hummingbird usually works with frequency of 500 beats in a minute, and during physical activity of 1200 and more beats in a minute. The maximum life expectancy of the hummingbird is 8 years. They eat every ten minutes.
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