wings
Bird bodies are made to fly. They have light bones, strong legs, and specially shaped wings. Flying helps birds get away from animals that want to eat them, and makes them better hunters, too. Flying also helps them travel from cold places to warm places, called migration.
they are used for flying.... :)
its wings!
A flying squirrel, certain types of snakes and a flying fish. These all can glide through the air without wings.
Because they have the same characteristics such as warm-blooded, egg-laying, feathered vertebrates of the class Aves, having forelimbs modified to form wings. What distinguishes Birds from other animals is the presence of feathers.
Yes they are
No, They migrate like all other birds; by flying on their own or in pairs
Birds and bats
Penguins are the birds that use their wings as flippers.
Birds have two legs with wings and bills.
Probably better for gliding than flying. Depends on how the birds flap their wings, how big they are and how big their wings are.