If the male budgie is successfully feeding the chicks and they are thriving, you may not need to intervene. Male budgies are capable of taking care of their chicks on their own.
However, it’s important to make sure that the male budgie is providing enough food for the chicks. You can monitor the chicks to ensure that they are growing properly and gaining weight.
If you notice any signs that the chicks are not thriving or the male budgie is not providing enough food, you may need to step in and hand-feed the chicks yourself or find an experienced bird breeder or avian veterinarian to assist you.