I've got 5 straight run chickens who are coming up 7 weeks old now. I've got one really obvious cockerel and one who I am 80% sure is also a cockerel - His comb and wattles are larger than the girls but nowhere near as big and red as the first's. I am expecting to have to rehome of l least one of them to keep the peace in the flock, but also to make room for another egg layer in our suburban setup. Once I'm certain they're both roos, what age would be best to find one a new home? Should I wait until they exhibit specific behaviours or just be realistic and find a new home before I get too attached? I also want to consider the best age to smoothly bring a replacement hen into the flock. Has anyone had experience with this that they can share? Any advice appreciated!