There are many species of Birds, but these ones in the List are most Vulnerable to harm because they cannot fly to escape danger.
All of the Birds that Live in this World are Beautiful, but these Birds are even More Unique because of their Inability To Fly.
1. Takahe Bird
This bird is only found in New Zealand and is considered to be an endangered specie of any living flightless birds under rail family. Its been assumed to be extinct before but after a very long search, some takahe birds were found near Lake Te Anau in the Murchison mountain. its overall length is up to 63 cm (24.8 in). It is a stocky bird, with reduced wings, strong legs and a massive bill. At present, there are 225 remaining Takahe birds in its habitat and is being carefully bred to prevent extinction. The only problem is the slow maturity and the low fertility of mature Takahe bird.
A penguin cannot fly but is a very good swimmer because it can flap its arms rapidly. Its kind lives only in the Southern hemisphere, it is because of the cold temperature there. There about 20 species of penguins but is still debated until now. The largest living species is the Emperor Penguin, while the smallest is the Little Blue Penguin. Penguins usually feed on fishes, squids and other small sea preys they could find while swimming underwater.
This bird is endemic to New Zealand and is used as the national symbol of the country. This flightless bird is considered to be the smallest among the ratites. There are about 5 species of this kind of bird. Kiwis are very shy and nocturnal that is why they are vulnerable to predators, but ever since people built sanctuaries for them, they can already be seen in daylight. They have a very sharp sense of smell, and they are a very unusual kind of bird having nostrils at the end of their bills.
This is knwon to be the second largest flightless birds next to ostrich. They are fed mainly on fruits and other plants that edible. Its species is also part of the ratite and has only three accepted today: Southern Cassowary, Dwarf Cassowary, Northern Cassowary. They are a very kind of bird but once disturbed would be a very dangerous bird as listed by the Guinness. Although Cassowary birds are already becoming extinct.