I'm not too sure what I'm worried about to be honest. I don't think they look likely to be cockerels. It's just that when I brought them home, they looked so small. I've usually bought POL hens, not 10 week old bantams. I have them in a little run separate to the two big girls. They were free ranging with the seller. I was told by the seller to keep them on the growers for another 3 weeks. I am making sure that they are sheltered from the sun. What else do I need to do to make sure they are well looked after please?