I have been in and out of the coop all day, didn't notice any problems. Tonight, when I closed up the coop, I found my 12 wk old buff orp laying in the enclosed yard. She made no effort to get away when I scooped her up and could not raise her head. She does not seem to have any other symptoms. Her breathing seems fine, her legs seem normal. I have checked her body and found no other problems. I fed her sugar water with a syringe, but she spit a lot of it back out. She pooped a little and the color was yellowish/white surround by clear. Any ideas?