Well, considering Indiana prosecutes people for running over ducks, I say "Bravo!" to that officer. He let someone avoid a felony!
Harrasment of migratory waterfowl is a federal offense.
What kind of sick creep would harass a duck? HOW would you harass a duck? "Hey, Quackie! That toupee looks terrible! What's with the feet? Too good for toes, are ya?!" See? It doesn't really work.