. . . . . . . . "Procellariiformes" . "Animalia" . . "Aves" . . . "Hydrobatidae" . . "Guadalupe Storm-Petrel" . . "Chordata" . "W. E. Bryant 1887" . "Oceanodroma macrodactyla W. E. Bryant 1887" . . . "Oceanodroma" . . "Oceanodroma macrodactyla" .