I got my four girls on Saturday and I am guessing they are about 10 weeks old. They seemed to be ready to venture out of their cozy coop so yesterday evening I opened the door and let them venture out. They stayed close to the coop and my daughter and I. She was splashing around in her kiddie pool and my rhode island reds jumped on the side to say hello. They found bugs and ants and had fun. I felt so relaxed watching them. I can't wait until this evening to let my girls out again.