Nazca Booby (Sula granti) [XC680748]
by from Isla de la Plata, Manab\u00ed Province, Ecuador (uncertain)
Nazca Booby (Sula granti) [XC332843]
by Bram Vogels from Isla Genovesa, Galapagos, Ecuador (call)
Subspecies
Sula dactylatra (Sibley and Monroe 1990, 1993) has been split into Masked Booby (Sula dactylatra) and Nazca Booby (Sula granti) following AOU (2000).
Considered by some authors to be a subspecies of Masked Booby (Sula dactylatra).