I had seven chicks Sept 24 2012. So they are not even 2 months old. They all are completely feathered, and have been sleeping outside at night with no heat light. As it looks to me all back and neck feathers are rounded at the ends. How old will they be before hackles start coming in? I looked at wing feathers when they where a day old and three days old. I counted 4 hens and 3 roosters. I am hoping to improve my sexing but just don't have patience to wait till they grow up. It would be nice to have 7 hens plus the 7 I already have but I know some have to be roosters.