Hello fellow chicken keepers: I have a problem I was hoping you all could help me figure out. Roosters have not fared well here the last year. Just the roosters. I have lost 5 in about a year. They act completely fine until it is too late, then one day I go out and they are weak, thin, and have diarrhea. They do not make it. I check for injuries and cannot find any. I'm just stumped because none of my pullets or hens have ever gotten sick like this. They all live together in the same space. What could be going on?