Yukihiro Fukuda / Masked booby (Sula dactylatra) mating pair deciding where to lay their eggs, which they do directly on the ground, Christmas Island, Indian Ocean, July
01405083
Yukihiro Fukuda / Masked booby (Sula dactylatra) parent shading chick from harsh sunlight at nest, Christmas Island, Indian Ocean, July
01405085
Yukihiro Fukuda / Masked booby (Sula dactylatra) flying overhead, Christmas Island, Indian Ocean, July
01405081
Yukihiro Fukuda / Masked booby (Sula dactylatra) some flying over others on ground, Christmas Island, Indian Ocean, July
01405141
Yukihiro Fukuda / Masked boobies (Sula dactylatra), Christmas Island, Indian Ocean, July
01405140
Yukihiro Fukuda / Masked booby (Sula dactylatra) head portrait, Christmas Island, Indian Ocean, July
01405086
Yukihiro Fukuda / Masked booby (Sula dactylatra) parent and young with beaks gaping to cool down in harsh sunlight, Christmas Island, Indian Ocean, July
01405082
Yukihiro Fukuda / Masked boobies (Sula dactylatra) on the ground, Christmas Island, Indian Ocean, July
01405080
Yukihiro Fukuda / Masked booby (Sula dactylatra) pair on beach, one calling, Christmas Island, Indian Ocean, July
01405164
Yukihiro Fukuda / Masked booby (Sula dactylatra) both parents take turns to brood eggs on ground nest, Christmas Island, Indian Ocean, July
01405162
Yukihiro Fukuda / Masked booby (Sula dactylatra) returning to brood solitary egg on ground nest, Christmas Island, Indian Ocean, July
01405163
Yukihiro Fukuda / Masked booby (Sula dactylatra) both parents take turns to brood solitary egg on ground nest, Christmas Island, Indian Ocean, July
01388584
Sue Flood / Masked Booby chick (Sula dactylatra) Ducie Island, Pitcairn Islands, South Pacific
00480280
Steve Gettle / Masked Booby (Sula dactylatra), Galapagos Islands, Ecuador
Pete Oxford / Two Nazca / Masked Boobies (Sula dactylatra granti) Punta Cevallos, Española / Hood Island, Galapagos Islands
01227893
Pete Oxford / Nazca / Masked Booby (Sula dactylatra granti) on rock, Punta Cevallos, Española / Hood Island, Galapagos Islands, Ecuador, South America
01227880
Pete Oxford / Nazca / Masked Booby (Sula dactylatra granti) on rocks, Punta Cevallos, Española / Hood Island, Galapagos Islands
01227906
Pete Oxford / Nazca / Masked Boobies (Sula dactylatra granti) courtship, Punta Cevallos, Española / Hood Island, Galapagos Islands
01227879
Pete Oxford / Nazca / Masked Booby (Sula dactylatra granti) with wings stretched, Punta Cevallos, Española / Hood Island, South America
01227975
Pete Oxford / Nazca / Masked Booby (Sula dactylatra granti) portrait, Wolf Island, Galapagos Islands, Ecuador, South America
01227973
Pete Oxford / Vampire / Sharp-beaked Ground Finch (Geospiza difficilis) feeding on blood from Nazca / Masked Booby (Sula dactylatra granti) Wolf Island, Galapagos Islands, Ecuador, South America
01227969
Pete Oxford / Vampire / Sharp-beaked Ground Finch (Geospiza difficilis) on a Nazca / Masked Booby (Sula dactylatra granti) where it feeds on blood, Wolf Island, Galapagos Islands, Ecuador, South America
01227974
Pete Oxford / Vampire / Sharp-beaked Ground Finch (Geospiza difficilis) feeding on blood from Nazca / Masked Booby (Sula dactylatra granti) Wolf Island, Galapagos Islands, Ecuador, South America
01217662
Tim Laman / Nazca Booby / masked booby (Sula dactylatra granti) mating pair, Espanola (Hood) Island, Galapagos Islands.
01217684
Tim Laman / Nazca booby / masked booby (Sula dactylatra granti) flying. Punta Vincente Roca, Isabela Island, Galapagos Islands.
01217663
Tim Laman / Nazca Booby / masked booby (Sula dactylatra granti) flying, Espanola (Hood) Island, Galapagos Islands.
01150481
Pete Oxford / Nazca booby / Masked booby flying {Sula dactylatra granti} Tower / Genovesa Is, Galapagos
01150482
Pete Oxford / Nazca booby / Masked booby {Sula dactylatra granti} head portrait, Tower / Genovesa Is, Galapagos
01150483
Pete Oxford / Nazca booby / Masked booby calling, beak open {Sula dactylatra granti} Tower / Genovesa Is, Galapagos.
01150484
Pete Oxford / Nazca booby / Masked booby preening {Sula dactylatra granti} Tower / Genovesa Is, Galapagos
01150486
Pete Oxford / Nazca / Masked booby on nest {Sula dactylatra granti} Tower / Genovesa Is, Galapagos
01150488
Pete Oxford / Nazca booby (formerly Masked booby) on nest with chick {Sula dactylatra granti} Tower / Genovesa Is, Galapagos
01150492
Pete Oxford / Nazca / Masked booby {Sula dactylatra granti} Tower / Genovesa Is, Galapagos
01150494
Pete Oxford / Nazca / Masked booby head portrait {Sula dactylatra granti} Tower / Genovesa Is, Galapagos
01144608
Pete Oxford / Nazca / Masked booby {Sula dactylatra granti} perching on stone looking backwards, Tower / Genovesa Island, Galapagos Islands.
01175585
Pete Oxford / Nazca booby (formerly Masked booby) (Sula granti) looking straight at camera, Española / Hood Island, Galapagos
01175550
Pete Oxford / Nazca booby (formerly Masked booby) (Sula dactylatra granti) Tower / Genovesa Island, Galapagos
01175586
Pete Oxford / Nazca booby (formerly Masked booby) (Sula granti) Española / Hood Island, Galapagos
01175549
Pete Oxford / Nazca booby (formerly Masked booby) (Sula dactylatra granti) Tower / Genovesa Island, Galapagos
01175552
Pete Oxford / Nazca boobies mating (formerly Masked booby) (Sula dactylatra granti) Tower / Genovesa Island, Galapagos
00210212
Pete Oxford / Masked Booby (Sula dactylatra) nesting colony observed by tourists from inflatable boat, Genovesa Island, Galapagos Islands, Ecuador
00210211
Pete Oxford / Masked Booby (Sula dactylatra) nesting colony observed by tourists from inflatable boat, Genovesa Island, Galapagos Islands, Ecuador
Flip Nicklin / Masked Booby (Sula dactylatra) with two chicks, Hawaiian Leeward Islands
00140869
Tui De Roy / Masked Booby (Sula dactylatra) taking off from open ocean, Galapagos Islands, Ecuador
00140868
Tui De Roy / Masked Booby (Sula dactylatra) flying, coming to land on cliff edge, Wenman Island, Galapagos Islands, Ecuador
00140756
Tui De Roy / Masked Booby (Sula dactylatra) couple allopreening during courtship, Tower Island, Galapagos Islands, Ecuador
00140755
Tui De Roy / Masked Booby (Sula dactylatra) couple allopreening during courtship, Tower Island, Galapagos Islands, Ecuador
00140720
Tui De Roy / Sharp-beaked Ground-Finch (Geospiza difficilis) drawing blood from base of Masked Booby (Sula dactylatra) feathers, an adaptation unique to Wenman Island, Galapagos Islands, Ecuador