I have a cockoo marans hen that went broody this past Friday. I have another hen and a roo. Question is could I place eggs collected from a few days prior under her to hatch (I already have) and for how many days after her going broody could I put the other hen's eggs under her and expect them to hatch. These were show chickens and the only marans of laying age I have so I thought I could sacrifice a few egg sales and build up my hen numbers. She has eight under her now. Any suggestions would be appreciated.