The black duck is often mistaken for a hen mallard on ... Courtship starts with head-bobbing and, if that goes well, escalates to swimming, bumping, nipping, and chasing both on the water and ...

The black-headed duck Heteronetta atricapilla, a little-known South American species, is the only obligate brood parasite whose chicks require no more parental care than incubation as eggs: within a ...

The bird’s red head feathers turn to black along its front ... learn what a wood duck looks like. The redhead’s red head feathers remain their most striking feature to a birder.