I need help.... Most of my birds have young in the nest ranging from 5 - 15 days old. I am feeding them a breeding mixture and also giving plenty minerals and grit and clean water. But when I feed them they are just nibbling away at the food/grit and it seems they are looking for something else. Is there something they need that I am not supplying. If I leave my section door open they're straight into corridor looking about like there's something there after. Any Ideas??