When can I worm the ducklings?

[Shadowhills Farm]

Just wondering when can I worm the ducklings? They are two months old and living outside.

Thanks

 

[GrannySue]

Do they need worming?
Are they showing signs of illness?

 

[ChickenToes]

If they don't have worms, there is no need to worm them.

 

[Shadowhills Farm]

No, they are showing no signs of illness or worms in their poop.