I officially have the worlds most stubborn chicken. She's a Java and a little over a year old. We have tried EVERYthing to break her from being broody. Isolated her in a wire bottomed crate during the day for 4 days until she just got so stressed and screechy that all the others started screeching along with her. Golf balls. Half a dozen long cold baths. Baby chicks. (She just ignored them) We moved things so that her nesting box is open to the sun instead of dark and cozy. I put a giant fan on her full blast. She just won't stop. She's sitting in there now, with her feathers blowing around like she's in a tornado and she still won't stop. Just keeps sitting and puffing up at us when we approach. We're going on 6 weeks since the first signs and over a month of super intense broodiness. It's our first experience with a broody hen and I didn't realize what was going on until it was too late. She's definitely lost weight and is only coming out 5-10 minutes every other day or so. No eggs for at least 3 weeks. It's officially ridiculous.