Beautiful Hummingbird
The Marvels of Flight, Hummingbirds
Hummingbirds are very small petite birds belonging to the family of Trochilidae. These birds have the capability to linger in mid air and flap their wings incredibly fast, that is, fifteen to eighty times per second. The distinguishing characteristics of a hummingbird are:
a) it can fly backwards
b) it can fly [...]