HUMMING BIRDS

   HUMMING BIRDS -

HUMMING-BIRDS

Humming Birds are birds that compromise the family Trochilidae.

They are among the smallest of birds, most species measuring in the 7.5 cm - 13 cm (3 to 5 inch ) range. Indeed, the smallest extant bird species is a hummingbird, the 5 cm Bee Hummingbird.They can hover in mid - air by rapidly flapping their wings 12 - 90 times per second depending on the species.

hummingbird-nest

 They can also fly backward, and are the only group of birds able to do so. Their English name derives from the characteristic hum made by their rapid wing beats. They can fly at speeds exceeding 15m/s (54 km/h to 34 mile/h) .

humming-birds-facts