Hi, when I went to clean out the coop yesterday, which I do everyday I noticed fresh blood on the shavings. I checked each chicken in a blind panic but could not find any evidence of injury or loss of blood from their bottoms etc. They all seemed healthy as usual but I wondered could this have been something which one of them has perhaps spat out or been sick? I checked the coop this morning before I went to work and all was fine. If any else has had this strange occurrence, please advise. Many thanks