Budgie wings

She is missing flight feathers. It takes more time to grow flight feathers, but it’s better to consult your vet. It is better to know if there are any health problems with her wing. Good luck

New baby budgie

You did right. If male or female start attacking younger budgie, it is better to separate. Do not worry, when all babies grow and you stop breeding, you can join them. Just provide enough space for all of them. Good luck