What do you mean whats the difference.... birds that can fly, FLY and birds that can't fly, CAN'T. birds that fly is positive birds that can't fly is negative.
no all birds do not fly
It is not only birds that fly. Bats fly and they are not birds.
its penguins they are birds they have wings but they do not fly :)
Birds can fly. Problem in the question?
Most birds can fly. Not all.
Not all birds can fly.
Not sure what you mean by that, but birds do fly.
yes umbrella birds do fly
not all birds can fly
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.
yes they are the only birds that can fly backwards.
all birds fly xept penguins
All birds that are light and have feathers and have a purpose to fly
In Winter, for food birds fly south.
The link below has a full list of birds that fly.
yes most birds fly south
There are many birds that can't fly. Example: penguins.
Birds Fly South was created in 2001.
When the Birds Fly South was created in 1945.
There are a few birds that can not fly. Penguins are one, ostrich, and most chickens can not fly either.
Birds do not fly all the way to the southern hemisphere, they fly to the equator.
Generally birds do not fly at night. However certain species do - owls, ducks and gulls. Migrating birds sometimes have to fly at night.
See the link below for a list of birds that cannot fly. It is much shorter than attempting to compile the millions of birds that do fly.