Way to tag Muscovy adolescents that doesn't require retagging them?

[thepregnantgod]

I bought some stiff plastic anklets for my ducks. They work well but I am wanting to give these guys to others in the area that have ponds without ducks. I can't trust these folks will recapture them and put larger anklets on them especially once they can fly. Are there ways to mark the ducks without having to worry about them outgrowing the tag?

(I want to tag them so folks know/presume the ducks are cared for and not something to shoot/kill as a nuisance.)

 

[Kevin565]

I don't honestly know of any tag that they won't outgrow as the grow.

 

[CelticOaksFarm]

Wing bands, but they won't be visual. Turning any duck loosen open water will have predators eventually killing some if not all.