We have 4 chickens, they’re about 7 weeks old. They should be a California White, ISA Brown, Barred Rock, and Black Asian. (If you think they are another breed, please say...we are first time chicken owners and are just going by what Tractor Supply said they were). They also said they should be females...what do you think? I am posting two pictures of the brown one (same chicken). Any insight would be great! Thanks!