Hi !!! I'm new to BYC . I have 1 English game bantam and his hen. They came with the coop. I have had them for 2 months and no eggs so I think she is an old hen. Then we just got 10 new chicks that are Star and RIR. Some were born May 3 and then May 10th. I'm learning about chickens daily. How do I keep the chicks from flying?