My white barred rock (we think) who was healthy and laid just yesterday didnt come down with the other girls this morning. Sometimes she lingers to go in the lay box. When I checked she was still on her roost and fluffed but didn't look sick. Just now my 7 yo went to clean up poops and came back sobbing. She was on the floor of the coop dead, stretched out and stiff. Her eyes look a little watery/gunky now. Her next is stretched out and stiff. I can't see anything else that looks odd but I'm no expert at all. Her vent does look a little red but there was no egg stuck and honestly I don't know what it SHOULD look like. Any thought? My poor little guy. He's so upset. I'm going down to completely replace the shavings in the coop jus in case. Will look for weird poop. But yesterday her poop was normal and she was eating out of my hand.