we originally had three big girlies , then at one point added two who were younger, one of them died when a predator got it, and then the remaining wyandotte was found two weeks later flipped onto her back dead. i had a similar reoccurence today. my three big girls who are all about a year old...
We used to have 6 chickens (just my little backyard flock) and we would let them out of their coop and then put them in again at night. we did this everyday... after a month or two of doing this when they were all full grown we started loosing chickens in broad daylight. there were never any...