Welcome to the world of Silver Penciled. Mine have always been very broody but do not let that convince you they really want to do that. I never have set eggs under them because they always quit about halfway through.
John
Good to know. I don't USUALLY trust broodies. I have let a couple brood babies and 1 did a very LOUSY job, the other was great. Most of what I hatch I NEED so I like to know they will really have a good chance of hatching.