1. The bird nest is not placed smoothly or properly, which may cause the chicks to fall down.
There may be something wrong with the chicks' legs, so they can't stand firmly in the bird's nest.
3. Mother bird or father bird may accidentally drop the chicks out of the nest when feeding them.
If the chicks fall out of the nest, the following measures can be taken:
1. Put the chicks back into the nest to ensure that the nest is stable and suitable.
2. Check whether there is any problem with the legs of the chicks, and if there is any problem, it needs timely treatment.
3. If the mother or father accidentally drops the chicks out of the nest, you can observe and help them put them back into the nest.
If the chicks can't return to the nest after falling out of the nest, the following measures can be taken:
1. Don't try to take the nestling back to its nest, because it may be regarded as a threat by the parents and may attack the nestling.
Keep quiet and don't disturb the animals nearby.
3. Observe whether the chicks need food or water, and provide food and water when necessary.
If the chicks are injured or need more care, they can be sent to the local wildlife protection center or animal protection organization.
In a word, there may be many reasons why the chicks often fall in the nanny's nest, but some measures can be taken to help the chicks return to the nest and ensure their safety.