Feed them bread, it's fine.
It's been cooked so it's easier to digest than the raw ingredients, all of which a duck would happily eat.
( brb Monkhouse Stampede, Fri 12 Jul 2024, 16:10, archived)

WRONG

(( * )( * ) ( . Y . ) (○¥○) ( ͜ₒ ㅅ ͜ ₒ), Fri 12 Jul 2024, 17:16, archived)

I've seen a lot of bread being fed to a lot of ducks in my time.
Not seen any correspondingly dead ducks yet.
( brb Monkhouse Stampede, Fri 12 Jul 2024, 17:47, archived)