I have a funny question. My mother hen Sue, had 3 chicks survive a hatch last Sept. It turns out she had 2 hens and 1 rooster. I went out one morning and Sue was sitting on about 10 eggs! She did get up and move so my assumption was she had just been laying or something. But what if they do get fertilized by the roo? He is related to all of them so it seems weird to me, but is this normal chicken behavior? I know some of the neighbours have chickens so I was thinking of maybe asking if they would like to trade my roo for one of theirs. But I kind of don't want to lose him given the history.