Because it is a mammal - it produces milk, has hair/fur, and gives birth to live young.
There are a few different similarities between the wing of a butterfly and the wing of a bat. Both are used to fly for example.
wings! duuhh!!
If these are true wings, this is a bird. BTW not all can fly: penguins
A Bat
a bird has hollow bones and an incect has an exo skeleton on the outside of their body!
the wings both flap they could be the same color they both make the animal fly.
because it has wings
the only thing that makes a bird a bird is the wings. no other animal (with the exception of the bat) has wings
Tweety Bird does have wings because he is a canary but you dont see them in the cartoons most of the time because they are tucked away. (: i think its obvious a bird has wings
There is no bird that does not have wings. All birds, even flightless ones, have wings, though they may be too small to see.
because its a bird
Because they are both use for flying.