I'll add that I USED to do starter, then grower, then layer. It got to be too much of a hassle once I had 3 generations of birds. Once I started having broodies raise the chicks, I realized that mamas break up the larger pellets for their chicks. I realized that worrying about it was unnecessary. If mamas don't change feed, then I wouldn't either. But I do use starter when I have brooder babies because of size and extra protein.