I have a hen sitting that should hatch a chick tomorrow. She is sitting on a few more that won't hatch for 2 more weeks if she keep sitting on them. What will she do with those eggs once the first chick hatches?
Well. I think after a while she'll give up on the eggs to care for the chick. Even if she continues to sit then the chick won't be cared for by momma Hen like it needs to. I'd suggest taking the chick away from her once it hatches and put it in a brooder for the time being then after the other chicks hatch try to graph the chick back to her. Momma hens can't count so when she wakes up one morning with one extra chick, she'll never know.