Interesting idea - 24 hours of darkness. Hadn't thought about that before.
I am getting new chicks late spring. I'm really hoping my Cochin goes broody around that time. I have zero problem bringing them in to brood them, but I think she'd be a great mama, and it'd be so cute to see her with babies in tow. Plus, it'd be easier to integrate them if she took care of it for me.
I have lots of time to think and decide before the new little ones arrive. 104 days, to be exact, but who's counting? LOL! Can you tell I'm excited?