Once ostriches are big enough to leave the nest, they typically join a group called a "crèche," which consists of other young ostriches. This social structure provides safety in numbers, as they are vulnerable to predators. The young birds continue to be cared for by one or more adult ostriches, which help protect and guide them as they learn to forage and adapt to their environment. As they grow, they become more independent, eventually reaching maturity at around 2-4 years of age.
it depends on their surroundings
An ostrich sleeps in it's nest
the mother bird will not come back to the nest, and will just leave the egg there.
A nestling is a young bird that is not old enough to leave the nest.
Crows mature and grow rather fast. In about 4 weeks they are mature enough to leave the nest.
Around 3 months they usually first leave the nest.
leave the nest to hunt
Birds look after their young in their nests until they are old enough to leave their nest and fend for themselves.
The mother duck will not be able to gather food, and the entire family of ducks will die.
Nothing. It will probably sit on it for a while if you leave it in the nest. After a while it should give up. It may keep laying eggs and have several in the nest.
Wasps leave their nest to search for food, defend their territory, or mate.
No, hornets do not leave their nest in the winter. They typically stay inside their nest during the winter months to survive the cold temperatures.