Wormers and/or dusting for call ducks?

[duckluck]

I'm wondering, what does anyone on here do as far as parasite control for their ducks? I have 15 call ducks and have not seen any of those sort of problems with them, but being as that I keep my horses on such a stringent parasite control regimen it seems I should be doing *something* for my ducks too, especially with the bug season just around the corner.

 

[Wifezilla]

If there are no worms in their poo, why stress? I guess you could add some DE to their food. I use it in the pen to keep flies down. I am sure some of it ends up inside as well. Maybe that is why I never see worms in their poo...hummm