Today I went into the coop and found a brahma dead. It was some where between 4-6 weeks old. After some research I thought it might have died from coccidiosis. Someone had been having some red/bloody colored stool and they weren't looking thrifty and not really eating. I examined the bird and the intestines looked normal to me. Once I got in I found "it." There was a greenish, dark green, mass on the right side of the chicken close to the center. I poked it and it was squishy. The thing next to it ( not sure what organ it is ) had some yellow stuff on it, too. This organ is kind of large and on both sides of the chicken. I just want to know what it is. I have another bird that is having the same bloody stool too. I'll post pictures once I find the cord for the camera. BTW it is NOT green muscle disease.