Organisms and Populations
Brood parasitism is seen in
The Phenomenon in which one organism (parasite) lays its eggs in the nest of another organism is called brood parasitism.
Brood parasitism is a subclass of parasitism and phenomenon and behavioural pattern of certain animals, brood parasites, that rely on others to raise their young. The strategy appears among birds, insects and fish.
Cuckoo lay its eggs in the crow's nest.