My rir's don't seem to like the pellet feed. I have 6 girlie and a roo,was suppose to be all pellets. They're 5 months old. I started feeding them layer feed because someone told me that they won't start laying unless you do. I thought that odd. But, one of them started laying. I'm pretty sure which one because she's the only one that will accept him(if you know what I mean.) Is this true?