. . . "Passeriformes" . . "Sclater 1874" . "Pachycephala soror Sclater 1874" . . "Animalia" . "Pachycephalidae" . . "Sclater's Whistler" . . "Aves" . . . "Pachycephala" . . . "Pachycephala soror" . "Chordata" . . . .