Charlie Summers / African elephants (Loxodonta africana) walking across the savanna under ominous gathering rain clouds, Serengeti National Park, Tanzania
01086547
Mike Read / Swallow tailed gull in flight {Creagrus furcatus} Galapagos
Stefan Huwiler / Swallow-tailed Gull (Creagrus furcatus) pair. Galapagos Islands, Ecuador, South America.
01352460
Stefan Huwiler / Swallow-tailed Gull (Creagrus furcatus) pair grooming. Galapagos Islands, Ecuador, South America.
01340700
Staffan Widstrand / Hood / Espaniola Mockingbird (Nesomimus macdonaldi) perched on a rock with Swallow Tailed Gull (Creagrus furcatus) in the background. Punta Suarez, Espaniola, Galapagos, Ecuador, April.
Staffan Widstrand / Swallow Tailed Gull (Creagrus furcatus) calls while a Gannet (Morus sp.) preens in the background. Punta Suarez, Espaniola, Galapagos, Ecuador, April.
01325868
Juan Carlos Munoz / Swallow-tailed gull (Creagrus furcatus) on a rock by the sea. Galapagos Islands, Jan 2009
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Juan Carlos Munoz / Swallow-tailed gull (Creagrus furcatus) portrait. Galapagos Islands, Jan 2009
01293394
Pete Oxford / Swallow-tailed gull (Larus / Creagrus furcatus) on rock, at sunset. Punto Cevallos, Española (Hood) Island, Galapagos islands, Equador, South America
01293406
Pete Oxford / Swallow-tailed gull (Larus / Creagrus furcatus) flying over Pacific ocean, Punto Cevallos, Española (Hood) Island, Galapagos islands, Equador, South America
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Pete Oxford / Swallow-tailed gull (Larus / Creagrus furcatus) flying over Pacific ocean, Punto Cevallos, Española (Hood) Island, Galapagos islands, Equador, South America
01293395
Pete Oxford / Head portrait of Swallow-tailed gull (Larus / Creagrus furcatus) calling, Punto Cevallos, Española (Hood) Island, Galapagos islands, Equador, South America
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Pete Oxford / Swallow-tailed gull (Larus / Creagrus furcatus) calling on nest, Punto Cevallos, Española (Hood) Island, Galapagos islands, Equador, South America
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Tui De Roy / Waved Albatross (Phoebastria irrorata), Swallow-tailed Gull (Creagrus furcatus), and Nazca Booby (Sula granti) mixed flock nesting together, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) flying, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) flying, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) flying, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) flying, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) with newly hatched chick, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) pair with newly hatched chick, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) pair with newly hatched chick, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) calling while flying, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) pair mutual preening in courtship, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus), Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) taking flight, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) with chick, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) with chick, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) chick stretching wings, Galapagos Islands, Ecuador
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Juan Carlos Munoz / Swallow tailed gull {Creagrus furcatus} in flight over sea, Plaza Island, Galapagos, January
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Juan Carlos Munoz / Swallow tailed gull {Creagrus furcatus} in flight over sea, Plaza Island, Galapagos, January
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Pete Oxford / Swallow-tailed gull (Creagrus furcatus) flying, Punto Cevallos, Española / Hood Island, Galapagos Islands
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Pete Oxford / Swallow tailed gull (Larus furcatus) flying, note tagging ring, Punto Cevallos, Española / Hood Island, Galapagos Islands
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Pete Oxford / Juvenile Swallow tailed gull (Larus / Creagrus furcatus) and Marine iguana (Amblyrhynchus cristatus) Punto Cevallos, Espaola / Hood Island, Galapagos Islands
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Pete Oxford / Swallow-tailed Gull (Larus furcatus) flying, Punto Cevallos, Española / Hood Island, Galapagos Islands
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Pete Oxford / Swallow-tailed Gull (Creagrus furcatus) calling on nest, Punto Cevallos, Española / Hood Island, Galapagos Islands
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Pete Oxford / Swallow tailed Gull (Larus / Creagrus furcatus) on nest, Punto Cevallos, Española / Hood Island, Galapagos Islands
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Pete Oxford / Swallow-tailed Gull (Creagrus / Larus furcatus) in flight over sea, Punto Cevallos, Española / Hood Island, Galapagos Islands, Ecuador, South America. Endemic
01227901
Pete Oxford / Two Swallow-tailed Gulls (Larus / Creagrus furcatus) standing on a rock, Punto Cevallos, Española / Hood Island, Galapagos Islands. Endemic
01227903
Pete Oxford / Swallow-tailed Gull (Creagrus / Larus furcatus) on rock, Punto Cevallos, Española / Hood Island, Galapagos Islands, Ecuador, South America. Endemic
01227908
Pete Oxford / Swallow-tailed gull (Creagrus / Larus furcatus) chick camouflaged amongst rocks, Punto Cevallos, Española / Hood Island, Galapagos Islands. Endemic
01227878
Pete Oxford / Swallow-tailed Gull (Creagrus / Larus furcatus) on nest, Punto Cevallos, Española (Hood) Island, South America
01227902
Pete Oxford / Swallow-tailed Gull (Creagrus / Larus furcatus) portrait, Punto Cevallos, Española / Hood Island, Galapagos Islands. Endemic
01227909
Pete Oxford / Swallow-tailed Gull (Creagrus / Larus furcatus) chick camouflaged amongst rocks, Punto Cevallos, Española / Hood Island. Endemic
01227905
Pete Oxford / Swallow-tailed Gull (Larus furcatus) with research ring, flying, Punto Cevallos, Española / Hood Island, Galapagos Islands. Endemic
01227932
Pete Oxford / Swallow-tailed Gull (Larus furcatus) on nest, Punto Cevallos, Española / Hood Island, Galapagos Islance, Ecuador, South America. Endemic
00427345
Pete Oxford / Swallow-tailed Gull (Creagrus furcatus) flying over coean, Hood Island, Galapagos Islands, Ecuador
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Pete Oxford / Swallow-tailed Gull (Creagrus furcatus), Hood Island, Galapagos Islands, Ecuador
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Pete Oxford / Swallow-tailed Gull (Creagrus furcatus) on nest calling, Hood Island, Galapagos Islands, Ecuador
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Pete Oxford / Swallow-tailed Gull (Creagrus furcatus) juvenile, Hood Island, Galapagos Islands, Ecuador
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Tim Laman / Swallow-tailed gull (Creagrus furcatus) flying. Champion Islet off Floreana (Charles) Island, Galapagos Islands.
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Tim Laman / Swallow-tailed gull (Creagrus furcatus) roosting. Champion Islet off Floreana (Charles) Island, Galapagos Islands.
01197776
Tim Laman / Swallow-tailed gull (Larus furcatus) standing on {Opuntia sp} cactus calling, Genovesa (Tower) Island, Galapagos, June
01197773
Tim Laman / Swallow-tailed gull (Larus / Creagrus furcatus) pair at nest. Santa Cruz Island, Galapagos, June
01192709
Jack Dykinga / Two swallow-tailed gulls (Creagrus fucatus) on their nest in a lava flow on Genovesa (Tower) Island, known as the "Island of Birds", Galapagos
01192710
Jack Dykinga / Two swallow-tailed gulls (Creagrus fucatus) at their nest in a lava flow on Genovesa (Tower) Island, known as the "Island of Birds", Galapagos
00143757
Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) parent calling, with chick on nest, Wolf Island, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) parent with chick on nest, Wolf Island, Galapagos Islands, Ecuador
00210715
Pete Oxford / Swallow-tailed Gull (Creagrus furcatus) with chick, Espanola Island, Galapagos Islands, Ecuador
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Pete Oxford / Swallow-tailed gulls (Larus / Creagrus furcatus) mutual preening. Española / Hood Is, Galapagos
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Pete Oxford / Swallow-tailed gulls (Larus / Creagrus furcatus) mutual preening. Española / Hood Is, Galapagos
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Pete Oxford / Swallow-tailed gulls (Larus / Creagrus furcatus) mating, Española / Hood Is, Galapagos .
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Pete Oxford / Swallow-tailed gull (Larus / Creagrus furcatus) Genovesa / Tower Island, Galapagos
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Pete Oxford / Swallow-tailed gull (Larus / Creagrus furcatus) Genovesa / Tower Island, Galapagos
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Pete Oxford / Swallow-tailed gull (Larus / Creagrus furcatus) amongst mangrove roots, Tower / Genovesa Island, Galapagos
00143588
Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) world's only nocturnal and pelagic gull incubating egg on nest, Genovesa Island, Galapagos Islands, Ecuador
00143587
Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) world's only nocturnal and pelagic gull departs at dusk to feed offshore, Genovesa Island, Galapagos Islands, Ecuador
Pete Oxford / Swallow tailed gull flying {Creagrus furcatus} Galapagos.
00141725
Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) endemic, world's only nocturnal and pelagic gull departs to feed far offshore, Genovesa Tower Island, Galapagos Islands, Ecuador
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Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) endemic, world's only nocturnal and pelagic gull departs at dusk to feed far offshore, Genovesa Tower Island, Galapagos Islands, Ecuador
00141718
Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) endemic, world's only nocturnal and pelagic gull departs at dusk to feed far offshore, Genovesa Tower Island, Galapagos Islands, Ecuador
00141717
Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) endemic, world's only nocturnal and pelagic gull departs at dusk to feed far offshore, Genovesa Tower Island, Galapagos Islands, Ecuador
00141716
Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) endemic, guarding chick in pebble nest, Genovesa Tower Island, Galapagos Islands, Ecuador
00141715
Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) endemic, pair mating at dusk, world's only nocturnal gull, Genovesa Tower Island, Galapagos Islands, Ecuador
00141714
Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) endemic, pair mating at dusk, world's only nocturnal gull, Genovesa Tower Island, Galapagos Islands, Ecuador
00140862
Tui De Roy / Swallow-tailed Gull (Creagrus furcatus) flying, showing predominantly white coloration, Wenman Island, Galapagos Islands, Ecuador