I've read several articles on disease and I have some symptoms that seem like one disease and symptoms of another disease. Maybe they have something with another secondary infection??
This is very common.
[/quote]Maybe they have something with another secondary infection??
[/quote]
Almost always! Have you check their intestines, or sent them to a lab? I would imagine you have (sorry, they have) Ulcerative Enteritis, they probably got it because of a proliferation of Coccidia. Maybe even Chronic Respiratory Disease. I would treat for the other two, or "see a doctor and get rid of it!"
Several of the internal diseases have very similar symptoms, even in the intestines. Stain, and microscopic diagnosis is the only way to be positive. If you have just a few birds, it's cheaper to just treat them for everything suspected.