Ducklings' favorite foods are earthworms, tadpoles, small fish and shrimp, red mites born in water are also ducklings' favorite foods, as well as various bugs in grass and leaves. Screws are also eaten, but the ducklings bought by the roadside are usually only a few days old and too small for the ducklings to eat.
The food the duckling eats is very miscellaneous, almost any food can be eaten, but don't feed vegetables with high water content when feeding, which will make the duckling have diarrhea. You can't eat bad food either. It is best to clean up the leftover food in time after feeding to avoid spoilage. If the duckling has diarrhea, it needs to stop eating for treatment.