A flightless bird is a bird that cannot fly due to evolution. There are more than 60 extant species, including the well-known ratites (ostrich, emu, cassowary, rare, kiwi) and penguins. The smallest flightless bird is the Inaccessible Island Rail (length 12.5 cm, weight 34.7 g).
Which bird cannot land on the ground?
The scientific name for the common swifts, A.apus, means "no legs" and refers to very short legs. Swifts are usually not landing on the ground because they are too exposed to predators, so common swifts are used only to cling to a vertical surface with their legs.
Which bird cannot fly?
These eight birds can't fly, but they should be envious anyway. Penguin. Emperor penguins (Aptenodytes forsteri). Falkland steamer duck. Falkland steamer duck. .. Weka. Weka is another bird in New Zealand. .. Ostrich. The mighty ostrich is really the king of birds. .. Kiwi. Kiwi. .. Kakapo. .. Takahe. .. Cassowary.8 Flightless Bird
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