@kcw0525 , I mean this in the nicest way possible, but how can you be so sure that he didn't have worms and/or blackhead? All of the symptoms in your first post fit both blackhead and worm issues, but they also fit the other diseases I mentioned. Would it surprise you to know that not all birds with blackhead have yellow poop? However, all will be depressed, fluffed, off feed and all will have diarrhea. Some will drink lots of water, some will drink less than usual, and often it's only one in the flock that gets it.
I'm not saying that it was blackhead or worms, but it sure could have been. Only way to rule them out is with a necropsy.
You didn't say what wormer you put in the water, but if it was Wazine or PigSwig, you should know those products only treat large roundworms. Best way to worm is to give Valbazen or Safeguard orally.
We know it wasn't worms because we checked his poop regularly. Yes, I guess it still could have been worms, but there was never anything in his poop.
And we're pretty sure it wasn't blackhead because no other bird is exhibiting signs of any kind of disease. They are all eating very well, alert and active. Even our other turkey. BUT, we aren't experts over here. My friend, who owns the turkeys, spoke to a vet who treats turkeys (there aren't many in OK). They said it would be waaay to expensive for my friend to drive out there and get the necropsy done, so we just burned him away from the coops and bleached the area. They said, after she explained everything as well, that it may have been just a genetic thing that only affected him. Like maybe his mom and dad had bad genes and weren't bred in the best conditions. She got him as a baby at a store, not a reputable breeder per se.
Now, if another bird dies rather soon, especially the other turkey, we will definitely get a necropsy done.
Also, about the wormer, I have no idea what she got for them, but I will definitely keep in mind the two you recommended. How often should we worm them? We were told twice a year. We do live in the south, so it is warmer here more than it is cold. I don't know if that has any effect.
Again, we have no idea what it could have been. We did our research and looked and looked and looked, but we had a hard time finding anything that matched his symptoms. I think at the moment, we are just going to say he was a bad egg, unless something else dies. We will keep a close eye on all our other birds. Thank you for your advice!