You searched for: “kleptoparasite
cleptoparasite, kleptoparasite (s) (noun); cleptoparasites, kleptoparasites (pl)
An animal that obtains its food mainly by scavenging the food supplies of another species; especially, one with which it habitually lives in close proximity: A cleptoparasite is considered to be a hidden or unrecognized animal or plant that lives in or on a host (another animal or plant) and it obtains nourishment from the host without benefiting or killing the host.