Birds are warm blooded and are winged , feathered,  and bipedal animals (two feet)

Their diet range from seed fruits to small mammals and other birds

They are endothermic.

Birds are characterized by feathers, beak, bill and with no teeth

They have a high metabolic rate

Birds have very good eyesight

They have a four – chambered heart

Birds build nest to house their young

All birds hatch from eggs

Birds use their beaks for cleaning and keeping the feathers in good shape

Birds skeleton help them in the powered flight.

Birds fly one territory to another place for weather purposes

Some birds are song birds (cuckoo, nightingale, some parrots etc)

Birds use their bill for catching their food.

Birds migrate seasonally

There are two types of Birds:  Flying and Flightless birds (Ostrich, Emu Cassowary, and King Penguin etc)