We are not allowed Roos in the city I live in. So when my girls go broody they try to hatch golf balls, because I take the infertile eggs out from under them throughout the day. My question is this: If one of our girls goes broody could I buy fertile eggs (from another flock) and put under her and she "possibly" hatch them? I thought about trying it last year. But thought I'd better get some others opinions. So do you think it's possible?