firs because they have hallow bones that allows them to fly and so they can get away from things that will try to eat them
Two, all birds have two wings.
Penguins cannot fly, nor did the dodo, which is why it is extinct. Also the emu and the ostrich. Neither of those two birds can fly.
two birds
It is not only birds that fly. Bats fly and they are not birds.
the answers is Ostrich. Ostrich cannot fly but they are the fastest bird to run.
They can't fly with one.
its worth two in a bush
Ostrich, Emu, Penguin, Kiwi
Penguins and ratites
Most birds can fly. Not all.
To say that birds use wings and feathers to fly, so all birds can fly, would be false. Not all birds can fly. An ostrich is an example of a bird that cannot fly.
The birds that can fly because it is easier for them to find food.