So, we have 2 roosters who have matured at the same time, one at 21 weeks, another at 17ish. They both crowed for the first time yesterday, and tonight, I'm guessing the hormones have kicked in, and they have no idea what to do with them. Both have begun running up behind only the girls of the same age, not laying yet, but not knowing what to do after that, beyond grabbing a hold of them and getting dragged around. The pullets don't know what is going on either (we had to cull our last roo a couple months ago). How long (days, weeks) before everyone figures out what they should be doing. They have so far totally ignored the older, laying hens (9 of them) and only focusing on the non laying ones (5 or 6). With both beating up those few...getting a little worried. No blood yet, but feathers are being ripped out.