Walked out onto the front porch and came across this. A bit freaked out because I'm worried for my chooks. Is this coccidiosis? We (my family) have had 3 die (one euthanised) recently from what the vet told us was likely a viral respiratory infection - possibly infectious laryngotracheitis. We made the difficult decision to sacrifice a beloved old silver spangled hamburg hen and have her sent off for a necropsy which we still have not got the results back for. A fourth hen had the same illness but has recovered after about two weeks of TLC. Can a viral respiratory disease cause blood in droppings like this or is it less likely the case? We have another hen with a prolapsed vent (recurring) and wondered if that could possibly be the cause, although we don't know which hen the poop is from. I have looked up images of cocci poop but none look quite as severe as this. It is about 4cm wide for extra info. We have amprolium so we could treat the whole flock for cocci but it would be difficult as they free range and it has rained a lot in the past few days leaving lots of alternative sources of water. Any help and suggestions would be greatly appreciated.