No, she's not doing any kind of the broody behaviors you mention. She just kind of hangs out in the box off and on throughout the day. My girls are kept in a 17x7 ft pen, and I let them out into the yard on special occasions depending on whether or not I can sit and watch over them from predators. Yesterday, when I had all of them out in the yard , she still hung out quite a bit in the box. I found this odd, because they always get so excited when they get to range. She doesn't act listless, she seems energetic, her eyes are bright. The only thing is that all of them have been looking a bit ragged since last summer, and only a few have done a true molt. Their combs and wattles look a bit dull and dry, and they just aren't as vibrant as I think they should be. Egg production went way down in the summer, which I thought was unusual. I have seen no signs of mites, save for ONE small bug on the roost several months ago. Nothing on the chickens as far as I can tell. I will be worming them shortly, as I have yet to do that, and I think it is probably prudent to rule out internal parasites as affecting their health.
The reason I'm particularly concerned with Margaret, is that her abdomen has been bare and slightly squishy/swollen for a few months, but doesn't seem to be getting worse. Her skin is also red, looking a bit inflamed, but not broken or no sores. I've been reading about egg-binding, internal laying, and ascites, but I've been hoping that it's something simpler than those conditions. That's why I was hoping that perhaps she was just being broody
