Special made stuff for taping ducks together. 3M makes it I think...
When I had some rescued ducklings in a box reinforced by packing tape, one of them managed to pull some tape off and get stuck to their sibling. This, of course, made them both very upset, and I had to get someone's help to carefully get them unstuck and the tape off their down without pulling it. (with bandage scissors and patience.)
Duck tape, indeed.
I had some rescued ducklings
So did you lead them south in the fall with your motorized hang glider ?