Rhea.
The dodo bird.
a few are ; ostrich,mallard,skimmer,lapwing and buzzard
Some sea birds with four letters are: - Erne - Tern - Gull
ostrich
Penguins are short-legged flightless aquatic birds. There are some 17 species in the penguin family.
Emu.
struthio
It is called a flightless bird b/c although it is classified as a bird, it can not fly.
Mohawk
The scientific name for flightless birds is ratites. This group includes birds like ostriches, emus, rheas, kiwis, and cassowaries. Ratites are characterized by their lack of keel on the sternum bone, which is necessary for flight muscle attachment.
The 5 birds are ostrich, emu, cassowary, penguin and kiwi.
The scientific term for birds that cannot fly is "flightless birds." Examples include ostriches, penguins, and kiwis.