Despite having wings, not all birds can fly. There are several types of flightless birds, including the penguin, kiwi, moa, weka and kakapo. Kiwis for Kiwi, an independent charity that protects the kiwi populations in New Zealand, states that there are more species of flightless birds in New Zealand than in any other country.
Baby birds fly at different rates depending on species, but they typically take at least two weeks after hatching. Some species of baby birds leave the nest and wallow on the ground for a week or more, still dependent upon their parents. Some species fly immediately after leaving the nest.