I am glad I am not alone in this battle with chicken math. When I moved to the country, I wanted a couple of chickens (maybe a rooster and hen). My son's coworker had 10 4-month old chickens. One started crowing and she can't have roosters in her neighborhood, so we took him. A couple of weeks later, she found that she had another rooster, so we agreed to take him also if she gave us a hen. So we were up to 3 but we thought that one rooster was lonely since the hen liked the other rooster, so we went to an auction and got 6 hens and 2 roosters (we were not allowed to bid on just hens). So we had 11 chickens and decided that was all we would have. Then the 2 new roosters and 1 hen died so then we had 8. We had built two chicken pens to keep the two roosters separate, and we thought that "we have room for more chickens". One hen went broody and hatched 3 chicks. So we were up to 11. One hen died. Then another hen went broody and she hatched 10 this week, but 4 died. We are now up to 16 chickens. We are talking about building a larger "community" pen with a large run, but I know if we make it too big we will have to get more chickens to fill it. I am hoping another hen doesn't go broody before we build a bigger pen. So now we have a 16 month old GLW rooster, a 16 month old BSL rooster, five 1 year old BR hens, three 3 month old BR/BSL/GLW mixed pullets, and 6 new BR/BSL mix chicks. I intended to only have 2 chickens.