I've been raising hens for eggs for about 4 years now. A couple weeks ago we found our hen "Red" in the nesting box dead. She looked like she had simply fell to sleep. There was no egg under her. She looked very healthy and acted fine in the preceding days. Any idea what could have caused this??? I waited two weeks to post in case our other hens did the same thing but they are doing great. I'm trying to figure out what it was so I can try to prevent it from happening to my other girls. My hens run free in our pasture during the day and we lock them in the coop at night. Red would have been one year old on July 1.