How long do I have to sneak fertile eggs under my broody hen? She has been broody for about 3 weeks. I'm afraid if I get eggs to sneak under her she will stop being broody before they hatch. I mean, she can't possibly know the difference between fertile and non fertile eggs so what if she is no longer broody a week into the process?
Do you have an incubator? I've heard of broodies being desperate and stay broody until they die or have chicks.