. "Passeriformes" . "Clark's Nutcracker" . . . . . . . "Nucifraga columbiana (Wilson 1811)" . . . . "Aves" . . "Nucifraga columbiana" . "(Wilson 1811)" . . "Chordata" . . "Animalia" . . . . "Corvidae" . "Nucifraga" . .