Laree-My co-broodies didn't fight at all, they just worked together to take care of the chicks. From what I read on BYC that is pretty typical. It was actually pretty interesting to watch. At first, they both stuck to the chicks like glue, all the time. When they were a couple of weeks old, they started occasionally going in separate directions, and one chick would go with Betsey, the BR, and the other would stay with Jean Grey, the Buckeye. The interesting part was that it wasn't always the same chick that went off on their own. Then, about a week ago, Betsey decided that the chicks were old enough, started sleeping on the perch and not really taking care of them, although she'll still protect them a bit. I think that Jean Grey is heading in that direction, especially now that the chicks are starting to sleep on perches.
Someone on here was saying that the co-broody thing is something that is Jungle Fowl do too, and that its a survival thing. If something happens to one mother the chicks still have someone to take care of them, and two broodies means that its easier to care for the chicks. I dunno if that is true or not, but it makes sense.
Becky-Looking at your set up, I'd try adding a perch at the same height as the existing one, on the wall opposite the nest boxes.
