not trying to hijack wilf but can someone give me an answer to this, last winter i had two pens with four oegb in each three hen and a cock in each they were out on free range a on alternative days one day i went out to find the cock in one pen dead lying in the run and the three hens still on the perch inside the coup, i thought it was because of the very cold and really wet spell and then four weeks later it happened again in the other pen cock lying in the run and the hens all ok and in the coup, never lost any of the hens. as i said i thought it was the weather so didnt check for bite m