My son has 5 broiler chicks that we have raised from 2 days old. He got them for his 4-H livestock show. I have grown attached to them. They fly up on top the box (its to cold right now to put them in their coop) and let me pet them, they run to me when they see me. I feed them twice a day so they dont overeat and get to heavy. How can I tell the males from females, 2 have the red things growing underneath their necks and the other 3 dont. I would like to be able to mark them to know which is which. Any help is appreciated!