Hi, I have a RIR hen who I think is dying but have no idea why. She is the smallest of the flock and has less quality feathers. They are about 1.5 years old. Her eggs generally have calcium deposits and no one else's do. Lately her eggs have all floated when I clean them, so they are not good. She is being bullied by my 2 roos. They pin her down and peck and stand on her. They are not breeding her, just picking on her. Last night she tried to fly up to the roost but couldn't make it up so slept on the floor in the coop. I honestly thought she might be dead when I went out today but she is still laying around on the floor. She has eaten and drank water. Has no respiratory trouble that I can see. I have no idea?!