I have a black copper marans hen, Fancy, and she was broody for two months! Now, when you put them in the wire cage, another thing that might help is suspending the cage so that it's up in the air.....like set it on a crate or something that's not solid. Do this for three days--no bedding--food and water only. Then, let her out. If she goes back to being broody--back in the cage for another few days......I've heard of people dipping their hens in cold water, and I think that's just plain mean. One thing is you can feed your broodies chick starter....there's more protein and such in there.