I ordered some chicks that will be here in 3 weeks and so i am setting up an area for their brooder. IT's my first time with chicks, so it's all a learning experience. I will be getting 5 Cornish X; 15 assorted heavy breed cockerels; and 7 easter egger pullets. The hatchery is going to mark the pullets with marker so I will know which ones they are. It will be between 20-35 degrees during the night and 45-65 during the day when they arrive. They will be in a shed with a 250 watt infrared heat lamp. The shed is dual purpose, so the chicks will be contained I think by a cardboard "draft shield" at first, then by whatever seems necessary as they grow. Question: (you knew this ramble must be going somewhere). Can they all live together until they are ready to go outside, or should I separate the girls? I am worried about bullying, cannibalism, and unknowingly butchering my pullets! I'm not sure at what point i will be able to tell breeds and sexes. Although the assorted heavies are supposed to be male, it seems possible there could accidentally be a female. Sorry for the ramble, thank you in advance!