Mallards (Anas platyrynchus) are found throughout the Northern hemisphere. Their adaptability to different habitats means they often live in proximity to humans, putting them at increased risk from man-made hazards. Sick and injured mallards are regularly rescued and taken to veterinary practices; they are tolerant of captivity and relatively easy to care for, making them ideal candidates for rehabilitation. The minimum required of a veterinary surgeon is to provide first aid care and alleviate suffering before transferring them to a local wildlife rehabilitator. This article describes some of the common conditions seen in mallards and how veterinary surgeons can best care for and treat them.