The female paradise riflebird raises offspring alone. There are currently no known subspecies of the paradise riflebird. The paradise riflebird is frugivorous and insectivorous. The paradise riflebird has been hunted by humans for its plumage. The paradise riflebird ("Lophorina paradisea") is a passerine bird of the family Paradisaeidae. Like the Victoria's riflebird and the growling riflebird, the paradise riflebird has a growling voice. The southernmost species, the paradise riflebird of Australia, lives in sub-tropical and temperate wet forests. The magnificent riflebird ("Lophorina magnifica") is a species of passerine bird of the family Paradisaeidae. Like other birds of paradise, the paradise riflebird is promiscuous and polyginous. The growling riflebird is endemic to the lowlands of easternmost Papua New Guinea. The paradise riflebird mainly feeds on insects and fruit, high in the forest canopy. The paradise riflebird was initially described as "Ptiloris paradiseus" by William Swainson in 1825. The four riflebird species are separated geographically, an easy characteristic for field identification. Victoria's riflebird has been reported to feed on 19 species of fruiting trees and vines.