Most ducks are seasonal breeders. Mating usually happens in late winter and spring when days get longer. Male ducks are called drakes and often show off with head-bobbing, whistling, or little dances to attract females. Some species form seasonal pairs, while others don’t stay together long after breeding. Female ducks choose nesting spots — usually hidden in grass, brush, or near water for safety. After eggs are laid, the female does most of the incubating and raising of ducklings. Drakes grow

Lovely Duckling - animation of the unfused skull bones of a bird