I am sure this exact question has been asked before. I have always had roos from somebody that I bought them from. They have always been grown. This year is the first time I want to hatch eggs with roos that I have raised on my own. All my girls are laying, and are about 6 month old. My roos are the same age and crowing already. I would like to get started on hatching eggs but I am not sure if the roos are ready to do their thing. They have been jumping on the girls and look like that is what they are doing but I have read here that they start practicing that early, just want to make sure I am not putting my girls through unnecessary stress.