I had to boot a few broodies myself to the duck pen yesterday. Nothing worse than being harassed by ducks. Breaks them after a day or two.
@lvie , was it you who has the hen laying a soft egg? I had a hen like that as well. The other hens picked up on it really quick and would eat it in the nest box getting yoke and whites all over my good eggs. I ended up rehoming her. My birds all have access to oyster shells, layer feed, and anything else they can dig up free ranging. Nothing helped. It was only after her first year she started laying a soft egg and that was that. I hope you have a different experience.