When my chickens started pecking at the styrofoam insulation we had used in their house, I researched it and found that styrofoam just passes right thru them without doing any harm. Should be the same for ducks?

I see lots of wild birds eating my lantana berries (that's why they grow so frequently along fence lines where birds sit!), so if it doesn't hurt them, that would tend to make me think the ducks ought to be fine.

Disclaimer: I claim no specific knowledge about ducks. The preceding are opinions only.

I've heard of ducks eating lead shot and getting lead poisoning...we have neighbors who don't take care of any of their animals, one time this poor messed up looking duck was limping around our property, it looked like it had eaten stuff that wasn't good for it, like lead shot. :(

hmmm no lead shot around here but i do have alot of exotic plants.