. . "Passeriformes" . . . "Passeridae" . "Passer swainsonii (R\u00FCppell 1838)" . . "Passer" . "Aves" . . . . "Animalia" . . . "Passer swainsonii" . . . "Swainson's Sparrow" . . . . "Chordata" . "(R\u00FCppell 1838)" .