thanks for that, i'll try to boost their fruit and veg diet and continue keeping a close eye on them. I have one of my older budgies in the same aviary and he seems to be teaching all the younger birds, when I first put in milk weed for them the older one only ate it but later I noticed he was trying to share it with the younger ones and now they all eat. I should take that as a good sign for the chick I think?