My healthy 8-month-old Marans rooster just died. I'd appreciate some ideas on what could have happened. Thanks in advance! He was fine yesterday morning when I let the flock out. He was running around and I saw him mate a hen before leaving for the day. My husband locked them up last night and he was on the roost. This morning at 7, I found him hunched up in the corner of the coop. I easily caught him. His comb was purple-ish and he was breathing heavily - not out of breath, but long, deep breaths. *No signs of injury or mite infestation. *There was some bloody poop on the board around where he roosts - not sure if it was his *Died at 10 a.m. - so within 24 hours from appearing fine. *Died with a squishy crop (wouldn't eat when I brought him in, so this was food from before) - I opened him up to see the crop and it was full of squishy, partially liquid-ized food. It seems that it would be from yesterday to be that smashed up - sour crop? Crop not emptying? Can sour crop kill a chicken that quickly? Could it be cocci? Could a rooster that old get it? Thanks so much! This was a shock and definitely sets back next year's breeding plan.