Botulism in poultry usually causes flaccid paralysis of the whole body, beginning at the feet and legs progressing up the spinal nerves to the wings, neck, breathing muscles, and eyelids. It comes from eating a toxin produced in decaying animal or plant matter in a low oxygen environment, such as fish underwater, animals buried underground, and maggots that may eat those. What are your ducks’ symptoms? Some things that may look similar would be moldy feed poisoning, or eating a plant or chemical that is toxic. There is no practical treatment, and most poultry may die within a day or so. It also can be difficult to diagnose with a necropsy unfortunately. It is more common in ducks than chickens, but most animals and birds, excluding vultures, can get it. Please let us know how your ducks get along. Giving water and electrolytes may help if it is something else wrong.