She's a Golden Comet and about 25 weeks old and has been laying eggs for a few weeks. She has been sitting on her egg for a couple hours now. How long should I let her sit on them? I put a couple others in her box just to see what she'd do, and she scooted them under her. One is hers, one's a Pekin duck egg, and another is a 2 y.o RIR egg...all laid today. Another question. Let's say she is broody and I want to put more under her. Do eggs that I put in the fridge automatically go sterile?