Just wanted to see if anyone here knows about a disease that chickens carry and can spread to turkeys and kill entire flocks of turkeys. Here's the story. My brother lives out in the country on a farm and they free range their chickens. About a mile from them is a large turkey farm. The man who owns this turkey farm asked my brother to get rid of his chickens for fear of them spreading a mycoplasma or something like that to his flock of turkeys and wiping out his flock. This has never been a concern until now. Needless to say they don't want to get rid of their chickens but they would not want to be responsible for this man loosing all his turkeys due to a disease from the chickens. He said that sparrows can carry the organism and spread it to his place. Is there something that can be done to prevent what ever disease that he is speaking of? Is this really a concern? Any info soon would be greatly appreciated. My nephew is heartbroken.