Hummingbird is the smallest of all living birds. They are called as hummingbirds because of the sound created by constant beating of their wings, as many as 50 beats per second. These minute birds have interested kids for their size and beauty. The free printable hummingbird coloring pages act as wonderful topic to hone the artistic skills too. The sheets not only feature the bird but also beautiful flowers and backgrounds, providing the kids ample opportunity to play with shades.