there is alot of them that i didnt know about
http://www.enchantedlearning.com/subjects/birds/printouts/Flightless.shtml
About 40 cannot fly
penguins cant fly, and chickens cant propperly fly!
because they cant fly
some birds are to big for their wings to make them fly
Penguin
Fly backwards
well, a bird that cant fly has a larger body mass than one that can
no they cant fly because it weighs down their wings
yes, chickens are birds even if they cant fly
They cant fly...
they cant fly at night because their eye sight is only for day
Hummingbirds can fly backwards.Hover.
Pengins , Dotle bird ,and chicken