Its because fly is both a noun and a verb, so it can be done, and in this case a bird happens to be able to fly. But sadly, bird is a noun and not a verb, so you cannot bird.
1. They both fly 2. They both live on tree 3. They both have wings
A mocking bird.
A horse fly
The feather is a very important object -- Without it, a bird could not fly. The feather is also important to the policeman -- Just think Of all the traffic Of birds Walking across the street.
the same as i just said on what books has hansen written.
Jay bird
a bird that cant fly
no you cant fly unless your have bird or something
yes
you cant fly ? your not a bird? you dont have wings -_-
The ostrich is one.
no it cant even fly
ostrich,emu,rhea..........
A penguin.
Penguin
a penguin and a dodo bird. they cant fly Also an Ostrich!
Penguins are known as the flightless bird, but ostriches are other common examples.