If you have mallard ducks landing in your pool are the duck droppings harmful?

Yes, duck droppings can be harmful if ingested or inhaled. Duck droppings can contain bacteria and parasites that can cause illness in humans, including E. coli, Salmonella, and Cryptosporidium. In addition, duck droppings can also contribute to the spread of avian influenza, a highly contagious respiratory illness that can affect both birds and humans.

If you have a pool, it is important to keep it clean and free of duck droppings. You should also avoid swimming in water that is contaminated with duck droppings. If you do come into contact with duck droppings, it is important to wash your hands thoroughly with soap and water.