Alright, I started reading this thread and haven't finished so I'm really sorry if this is somewhere in here, but I need the info now since it's happening now!
I have a chicken who is about 7 months that is going broody (Golden Laced Wyandotte), and I want her to! She was sitting in the next box for longer and longer periods until last night I found her in the next box instead of roosting. I wanted to move her because it would be a disaster if she stayed in there. Since it was the middle of the night and I wanted to get her moved that day (all of my chickens like to use that next box), I put her in a cat carrier with bedding and left it in the coop (I realize now I should have put it outside of the coop and kept it dark. ****). Anyway, she was standing up this morning and when I open the cat carrier door she hopped right out. The other chickens saw the 3 falsies in there and now looks like they are going to lay in there today. Wierdos. But anyway, this seems great because it's mobile and if my broody girl starts sitting in there again I can just pull it out of the coop, put a blanket mostly covering it, and set up a little outside area with some food and water.
She is now on and off sitting places, but I'd love to try to encourage the broody in her. Is it too risky since she is young? Is there any way to encourage her to sit in the mobile nest? 2 of the girls layed in there today and one layed in the old one. The broody (almost) didn't lay today.