No I haven't dewormed them. I wasn't aware that would be an issue. I'll talk to the vet about that too then.
It *can be* an issue if you have a high worm count in hour area... not all areas are the same, but that's why fecals are an important diagnostic tool...

A worm overloaded duck might stop preening, be quieter, and slower than the rest... that's why I brought it up as a possibility too... hope the vet can help...
