A bird has a wing as a forelimb as well as a bat, and the function of both are to help the animals fly
They both fly.
It Provides warmth..and allows the bird to fly
Well it fly's like a bird and looks like a rat.. therefore Bat!
The external structure is the wing. Its bones are so not heavy that the wind takes the bird up and allows it to fly.
Depends On The The Bat And The Bird
A bat is a type of mammal. It is not a bird.
If these are true wings, this is a bird. BTW not all can fly: penguins
No bird has a foot on its head.
the wings both flap they could be the same color they both make the animal fly.
Bat is the mammal that can only fly.
well if a bird look like a bat then it's a birdbat