I have 8 21 week old hens, and one 21w/o roo. One of my EE was shaking her head and letting out a high and low "EEP!" like the squeak that goes along with a sneeze, but I don't think she was sneezing. She did it (roughly) every 5-7 seconds about 7 times, and after each one she held her mouth open for a moment. Then she appeared to stop, but I had to come inside so I didn't have a chance to see if she was really done. She wasn't doing anything else odd, she was eating and scratching along with everyone else. Is she okay?
Hens go broody when you don’t want them to… and won’t go broody when you do.