It is good that they get along. I suppose it is your providing all needed feed that kept the firstborn from tossing the siblings out of the "nest" or seriously hurting them.
How wise Nature is. The first born will be more likely to survive tough times with no food competition. The next will insure progeny should the first fall to a predator that first week. In the best of times, all will thrive.
Mother nature might be harsh, but she knows what she is doing. I think all 3 are going to be yellow sided ( color) like mom. Dad is a pineapple same colors but muted .
Soooo...... Parrot PawPaw........just what are you going to do with them?? Create Parrot PawPaw's Parrot Paradise? Keep them all? Sell them on Craigs List? Do you have a waiting list for these Birdie Babies?