Black-headed duck
Videos
The black-headed duck is a South American duck in subfamily Oxyurinae of family Anatidae. It is found in Argentina, Bolivia, Brazil, Chile, Paraguay, and Uruguay.
Heteronetta atricapilla blackheadedduck
Male
Female
Presbyornis Enhancement
Brood parasitism
Videos
Brood parasitism is a subclass of parasitism and phenomenon and behavioural pattern of animals that rely on others to raise their young. The strategy appears among birds, insects and fish. The brood p
Black-headed duck
…component appears to be seeds of Scirpus californicus, and snails a minor component. The black-headed duck is unique among waterfowl; it is an obligate brood parasite. The female does not build a nest but lays its eggs in the nests of other birds. Known hosts include the rosy-billed pochard (Netta peposaca), the…
A shiny cowbird chick (left) being fed by a rufous-collared sparrow
Eastern phoebe nest with one brown-headed cowbird egg (at bottom left)
Four clutches of reed warbler eggs, each containing one visibly larger cuckoo egg
The goldeneye often lays its eggs in the nests of other females, one of 74 species of Anseriformes to do so.