Many chicks are artificially incubated and have no "parents" in that sense of the word.
Chicks that are hatched under a hen will remain close to the hen as part of the flock for as long as they live. Chicks introduced to the flock at about 3 or 4 months old are assimilated into the flock within hours.
Until its young is old enough to leave.
Kiwi have chicks. "Nestling" refers to young birds that are not old enough to leave the nest. Kiwi chicks hatch with their eyes fully open, meaning they are well developed and able to fend for themselves almost immediately.
Depending on the species, chicks are old enough to leave the parents' territory when they are 4-6 weeks old. Southern Tokoeka may stay with the parent for up to 5 years.
when they are 5 years old
Many chicks never know their mother. Most chicks are artificially incubated and are raised in a brooder with other chicks their own age. Chicks hatched by a broody hen in the chicken coop often stay with "mom" until they are full grown at the age of 6 to 8 months old and will often stay with "mom" all their lives. This is basically just for companionship as the mother hen does not feed her chicks, they are born knowing how and what to eat.
They need a mother until they grow feathers which might be in about a week, then you can let the mother be a normal hen again, but separate chicks from all birds
A cub is able to leave their mother in 13-20 months.
Usually they do, though you have to be carefull around the mother until the babies are about one month old.
Chicks can't really protect themselves but the mother hens will protect them until they are old enough breed and to feed on their own.
A hen will likely not adopt chicks unless she has chicks of the same age already. Hens will protect her nest from even the smallest chicks introduced so it is not a good idea to try to force a hen to "mother" newly hatched chicks. Keep the young chicks in the brooder box until they are older and can defend themselves. It is not the rooster they need to worry about, he will ignore them, the most damage will come from older hens establishing the pecking order of the flock. Chicks and mother can be introduced back into the flock by about 2 to 3 months. There will still be some squabbling, but the chicks are old enough and fast enough to escape the worst of the punishment. Momma hen will help them. There is not much worry from the rooster.
Leave it where it is because it is natural! If there is no mother ask someone if you can look after it for a while until it is old enough to fly and fend for it's self!
When koalas are young they stay with their mother until they're old enough to leave and survive by themselves.
It is not a matter of how long kiwis stay with their babies, but of how long the young are able to stay with the parents. Depending on the species, kiwi chicks are old enough to leave the parents' territory when they are 4-6 weeks old. Southern Tokoeka may stay with the parent for up to 5 years.