. "Animalia" . . "(Linnaeus 1766)" . "Passenger Pigeon" . . . "Aves" . . "Columbidae" . . "Ectopistes migratorius" . . . . "Ectopistes" . . "Chordata" . "Ectopistes migratorius (Linnaeus 1766)" . . . . . . . "Columbiformes" .