Hi Donna,dfcauley wrote: I just thought of something......Sunshine NEVER eats worms. I put them in a bowl on the floor of the aviary. He never goes down to eat them.
He doesn't need to eat them to necessarily become infected.
Simply by the other birds eating them and defecating, he can come into contact with their eggs or cysts if he comes into contact with contaminated poo.
I am not a huge fan of mixing meds, so I would continue with the Ronex (protozoa can cause diarrhea as well) and see if you see any improvement first.
If not, I would do the wormer (it is only a one time, one day treatment) and if you still see issues, the abx I would recommend to try (and I think Misty would agree with me here) is Trimethoprim Sulpha or a derivative like MedPet's 4-in-1 which tackles everything TMS does and then some.