How many ducks are born at once?

A group of baby ducks is called a brood. The average brood size for a duck is between 10 and 12 ducklings. However, some species of ducks can lay as many as 30 eggs at a time. The number of ducklings that hatch from a brood depends on a number of factors, including the species of duck, the health of the mother, and the environmental conditions.