well, a bird that cant fly has a larger body mass than one that can
The main difference is that though both are birds, only the parrot can fly. An ostrich is a flightless bird.
Some can fly some can not Some can swim some can not Birds beaks are of different shapes Birds Wings are of different shapes Birds legs and feet are of different shapes Birds come in different sizes Some birds hunt prey on the wing
There is no such thing as a dinosaur that flys. The difference between a pteradoctyl and a bird is: Birds have feathers and pteradoctyl's don't. The difference between a oviraptor and a bird is: Oviraptor have hands and birds have wings.
This I a very silly question.
There is a distinct difference. I believe I can fly, and birds just fly. :) Just kidding. People fly with 200 ton contraptions of metal and fire, while birds fly with 2 limbs of feather, skin, bone, and muscle. See the difference?
It is not only birds that fly. Bats fly and they are not birds.
One can fly...
cats like to chase and eat birds, and birds like to fly to get away from cats.
The difference between a cat and a mouse is that mice are small and cats are bigg
a car doesn't fly a plane does
Airplanes fly, trains don't.
birds have feathers lizards have scales birds are warm blooded lizards are cold blooded birds can fly lizards cant