Baby parakeet questions.?

We had an unexpected hatching of one baby Friday night. It has been growing steadily and the mother has done very well at tending to it. The second egg just hatched a couple of hours ago and mom is tending to it well but the bigger baby is often to her side now while she's lays on the new baby. The older baby is quiet but moving ( making me think he's still getting fed?) Is this normal? (please be nice I was hesitant to ask since some responses have been rather nasty. The birds were a present to my daughter. The were bought from a pet store reffered to me by a friend that advertises they "specialize" in birds. we were advised to buy two for companionship, and were advised that male/female pairs are the most compatable. My first comment was that we weren't interested in breeding and I was told that if we did not provide them with a nesting box they would not fertilize them and to throw the eggs away when they looked like they lost interest. They hatched instead!)