'A / Brown Booby / Brunsule (Sula laucogaster) juvenile.
Location: Kilauea Point National Wildlife Refuge, Kauai.
AvesbirdsfuglerSuliformesSulidaeboobiessulerSulaSula laucogasterBrown BoobyBrunsuleKilauea PointKilauea Point National Wildlife RefugeKauaiHawaiian Islands
From Birds of Hawaii