Yes, the ducks are cute, but giving them bread can cause health problems and negatively impact their environment. Bread is high in carbohydrates and has little nutritional value for ducks, which require varied diets to live healthy lives, says Kristin Norris, a veterinary technician at VCA Bridgeport Animal Hospital.

What happens if you feed bread to ducks?

Even the bread that birds don't eat is bad for them: Rotting bread can grow mold that makes ducks sick, contribute to the growth of algae—which can kill loads of animals—and attract vermin that spread disease to birds and humans alike.

What can you feed ducks?

DO: Feed ducks cracked corn, oats, rice, birdseed, frozen peas, chopped lettuce, or sliced grapes. These foods are similar to natural foods ducks will forage for on their own.