What is she doing that makes you think she is egg bound? I believe all breeds of chickens can develop the problem at times, but just in my experience, it usually happens in younger birds. Does she have a bulge by her vent? Can you feel an egg in there? I suppose the weird weather we are having could attribute to some problems, though luckily, I've not had them since the one pullet. Is she eating and drinking? I brought my pullet inside and kept her warm, and made sure she got a water dose every hour or so, mixed with vitamins and electrolytes. She pecked at some yogurt mixed with her feed, but she acted like she had a belly ache. This was late in the day, and I figured if she hadn't passed the egg by morning, I would put her in a tub of warm water and let her soak for awhile. The heat and humidity from the bath tends to loosen things up so she can pass the egg. Mine didn't need it, she laid her egg first thing in the morning, and was chomping at the bit to go back outside! Good luck.