i have 6 chickens in coop/run with some free ranging abilities. had them 2 years now. sometimes, run/coop door open to allow them go get out and about. aside from 1 racoon in 7 years, and owls-which have no room for wing span, and ladies in coop at night - we have never had a problem w/predation. last night, i went out at dark to pick up one of the feeding bowls and collected eggs. came inside and took eggs out of said bowl, and noticed fresh blood on one of the eggs. don't think it was blood out of the butt - because when i looked at the bowl, there was a blood spatter pattern around the entire bowl - kind of a dexter thing. upon checking the next day. all ladies present and accounted for and none seem to have any injuries. my question is this: is it possible, that earlier in the day, if a small mouse/rat was grazing in the bowl, could/would my ladies peck said rodent to death and eat it? the only other explanation is the one of my ratter cats, who never mess with the ladies, were out there and did a kill on said rodent. someone who used to have chickens suggested avian flu and chicken sneezed blood. my ladies are very healthy, so i don't think this flu thing makes sense, and i don't even know if chickens sneeze. i have read about chickens attacking frogs, snakes, etc. any input?