hey, i just got 6 baby chicks at the state fair on an impulse. But now 4 of them have those little things on their heads. they are about 3 weeks old, and its been 3 days since we first noticed them and they are startng to turn reddish. So i really just want to know if i have 4 roosters and only 2 hens, because i don't think that i can just keep 2 hens. Also, we were planning on making our old playhouse in to the chicken coop, but it desnt have electricity or heat and we live in NJ. So for the winter do i need to get electricity or heat installed? thanks.