The relationship involving the crown-headed cowbird and its eggs can be considered a parasitic relationship.
Parasitism is an ecological relationship where one species is benefited and the other species is harmed.
In this case, the statement 'the brown-headed cowbird lays its eggs in the nests of other birds who then feed and care for the cowbird hatchlings' is indicative of parasitism.
Conversely, symbiosis is an ecological relationship where both species are benefited from their interactions.
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