Tui De Roy / Violet tailed sylph (Aglaiocercus coelestis) Guango private reserve, Papallacta Valley, Andean Cloud Forest, East slope, Ecuador

Tui De Roy / Yellow breasted antipitta (Grallaria flavotincta) Angel Paz reserve, Mindo region, Andean cloud forest, Ecuador

Tui De Roy / White bellied woodstar (Chaetocercus mulsant) three hovering around red flowers, Guango private reserve, Papallacta Valley, Andean Cloud Forest, East slope, Ecuador

Tui De Roy / Sparkling violetear hummingbird (Colibri coruscans) incubating eggs at nest, Andean cloud forest, Ecuador

Tui De Roy / Golden breasted puffleg (Eriocnemis mosquera) hummingbird Yanacocha Reserve, Jocotoco Foundation, 3,200m altitude on west slope of Pichincha Volcano, Andean cloud forest, West slope, Tropical Andes, E...

Tui De Roy / Marine iguana (Amblyrhynchus cristatus) males migrating to breeding areas at the onset of warm season. Galapagos Islands, Ecuador, December.

Tui De Roy / Marine iguanas (Amblyrhynchus cristatus) sky-pointing position to keep cool in sun. Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador, June.

Tui De Roy / Hood island giant tortoise (Chelonoidis nigra hoodensis) used for breeding program since 1960s, Tortoise Breeding Centre, Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador, Critically endang...

Tui De Roy / Great frigatebird (Fregata minor) male guarding single chick. Punta Cevallos, Espanola Island, Galapagos, Ecuador, May.

Tui De Roy / Volcan Alcedo giant tortoises (Chelonoidis nigra vandenburghi) wallowing in rain pools on caldera floor, possibly for thermoregulation or detering parasites, with sulphur fumaroles in background, Alce...

Tui De Roy / Wolf Volcano giant tortoise (Chelonoidis nigra becki) portrait, Isabela Island, Galapagos

Tui De Roy / Wolf-Volcano giant tortoise (Chelonoidis nigra becki) portrait with ground finch (Geospiza sp. ) sitting on foot, Isabela Island, Galapagos. Did you know? Galapagos tortoises have a mutualistic relati...

Tui De Roy / Short-eared owl (Asio flameus galapagoensis) looking between branches, portrait, Galapagos islands

Tui De Roy / Red-billed tropicbird (Phaethon aethereus) in flight over water. Galapagos Islands, Ecuador, May.

Tui De Roy / Red-billed tropicbird (Phaethon aethereus) in flight. Galapagos Islands, Ecuador.

Tui De Roy / Nazca boobies (Sula granti) against dawn sky. Espanola Island, Galapagos, Ecuador, May.

Tui De Roy / Yellow-crowned night heron (Nyctanassa / Nyctanassa violacea) portrait. Galapagos Islands, Ecuador, June.

Tui De Roy / Marine iguana (Amblyrhynchus cristatus) in profile against dark background. Galapagos Islands, Ecuador, December.

Tui De Roy / Marine iguana (Amblyrhynchus cristatus) in cloud of flies. Galapagos Islands, Ecuador, June.

Tui De Roy / Marine iguana (Amblyrhynchus cristatus) emerging from sea onto beach, with Sally lightfoot crabs (Grasopus graspus) and Galapagos Fur Seal in background. Galapagos Islands, Ecuador, June.

Tui De Roy / Great frigatebird (Fregata minor) male taking flight at dusk. Espanola Island, Galapagos, Ecuador, May.

Tui De Roy / Magnificent frigatebirds (Fregata magnificens) in low flight ovehead. Espanola Island, Galapagos, Ecuador, December.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) portrait, covered in sand. Endangered. Seymour Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) looking out to sea on sandy beach. Endangered. Espanola Island, Galapagos, Ecuador, June.

Tui De Roy / Galapagos penguins (Spheniscus mandiculus) standing on coastal volcanic rock. Endangered. Isabela Island, Galapagos, Ecuador, June.

Tui De Roy / Flightless Cormorant (Nannopterum / Phalacrocorax harrisi) with nesting material. Banks Bay, Isabela Island, Galapagos Islands, Ecuador, December.

Tui De Roy / Galapagos fur seal (Arctocephalus galapagoensis) large territorial bull on volcanic rocks. South Coast Cerro Azul (Cinco Cerros), Isabela, Galapagos Islands, Ecuador, June.

Tui De Roy / Flightless Cormorant (Nannopterum / Phalacrocorax harrisi) with chick at nest, made from dead starfish. Banks Bay, Isabela Island, Galapagos Islands, Ecuador, December.

Tui De Roy / Cactus finch (Geospiza scandens) feeding on cactus flower nectar and pollen. Espanola, Galapagos Islands, November.

Tui De Roy / Brown pelican (Pelecanus occidentalis) in flight above wave. San Cristobal Island, Galapagos, Ecuador, June.

Tui De Roy / American flamingo (Phoenicopterus ruber) feeding from water surface. Floreana Island, Galapagos, Ecuador, June.

Tui De Roy / Blue-footed Booby (Sula nebouxii) sky pointing during courtship dance, Galapagos Islands, Ecuador. Sequence 1 of 3

Tui De Roy / Greater Flamingo (Phoenicopterus ruber) pair in territorial display while two other feed, Galapagos Islands, Ecuador

Tui De Roy / Emperor Penguin (Aptenodytes forsteri), Prydz Bay, eastern Antarctica

Tui De Roy / Reticulated Giraffe (Giraffa reticulata) mother and calves, Ol Pejeta Conservancy, Kenya

Tui De Roy / Baglafecht Weaver (Ploceus baglafecht) male, Borana Ranch, Kenya

Tui De Roy / African Elephant (Loxodonta africana) trio, Ol Pejeta Conservancy, Kenya

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) female and pup nuzzling, Galapagos Islands, Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) female guarding chick, Galapagos Islands, Ecuador

Tui De Roy / Toucan Barbet (Semnornis ramphastinus) beside a bromeliad, Bellavista Cloud Forest Reserve, Ecuador

Tui De Roy / Crimson-rumped Toucanet (Aulacorhynchus haematopygus) eating fruit at feeding station, Bellavista Cloud Forest Reserve, Ecuador

Tui De Roy / Campbell Albatross (Thalassarche impavida) immature flying, North Cape, Campbell Island, sub-Antarctica New Zealand

Tui De Roy / Campbell Albatross (Thalassarche impavida) parent guarding chick, North Cape, Campbell Island, sub-Antarctica New Zealand

Tui De Roy / Dewflowers (Drosanthemum sp) and other blooms, Little Karoo, South Africa

Tui De Roy / Rockhopper Penguin (Eudyptes chrysocome) trio on rock, Nightingale Island, South Atlantic

Tui De Roy / Rockhopper Penguin (Eudyptes chrysocome) portrait, Gough Island, South Atlantic

Tui De Roy / Rockhopper Penguin (Eudyptes chrysocome) portrait, Gough Island, South Atlantic

Tui De Roy / Rockhopper Penguin (Eudyptes chrysocome) portrait, Gough Island, South Atlantic

Tui De Roy / Blue-footed Booby (Sula nebouxii) pair performing courtship dance, Hood Island, Galapagos Islands, Ecuador

Tui De Roy / Blue-footed Booby (Sula nebouxii) pair performing courtship dance, Hood Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) females socializing, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Waved Albatross (Phoebastria irrorata) courtship dance under rainy season clouds, Punta Cevallos, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Danzante Island, Sea of Cortez, Baja California, Mexico

Tui De Roy / Cardon (Pachycereus pringlei) cactus, Santa Catalina Island, Sea of Cortez, Baja California, Mexico

Tui De Roy / Humpback Whale (Megaptera novaeangliae) breaching in summer feeding grounds, Southeast Alaska

Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) breeding male basking with Sally Lightfoot Crab (Grapsus grapsus) scavenging dead skin, Hood Island, Galapagos Islands, Ecuador

Tui De Roy / Erect-crested Penguin (Eudyptes sciateri) pair, Antipodes Island, New Zealand

Tui De Roy / Erect-crested Penguin (Eudyptes sciateri) close-up portrait, restricted to Proclamation Island, Bounty Islands, New Zealand

Tui De Roy / Salvin's Albatross (Thalassarche salvini) returning en masse to crowded nesting colony at sunset, Proclamation Island, Bounty Islands, New Zealand

Tui De Roy / Salvin's Albatross (Thalassarche salvini) returning to crowded nesting colony at sunset, Proclamation Island, Bounty Islands, New Zealand

Tui De Roy / Glacier with tourist expedition in inflatable zodiac, southern Greenland Fjords, Greenland

Tui De Roy / Adelie Penguin (Pygoscelis adeliae) group crowding on melting summer ice floe, Possession Island, Ross Sea, Antarctica

Tui De Roy / Adelie Penguin (Pygoscelis adeliae) group crowding on melting summer ice floe, Possession Island, Ross Sea, Antarctica

Tui De Roy / Black-footed Albatross (Phoebastria nigripes) pair bonding, Midway Atoll, Hawaii

Tui De Roy / Waved Albatross (Phoebastria irrorata) courtship display sequence, Punta Cevallos, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Danzante Island, Sea of Cortez, Baja California, Mexico

Tui De Roy / The rainless coast of the Atacama Desert is bordered by rich Humboldt Current upwelling, Paracas National Reserve, Peru

Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) grazing seaweed in wave wash at low tide, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Atlantic Puffin (Fratercula arctica) at entrance to nesting burrow during breeding season, Skomer Island, Wales

Tui De Roy / Galapagos Giant Tortoise (Chelonoidis nigra) on caldera rim, Alcedo Volcano, Isabella Island, Galapagos Islands, Ecuador

Tui De Roy / Waved Albatross (Phoebastria irrorata) pair bonding, Punta Cevallos, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Waved Albatross (Phoebastria irrorata) pair bonding in flowering tribulus field during rains, Punta Cevallos, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Waved Albatross (Phoebastria irrorata) courtship display sequence, Punta Cevallos, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Flightless Cormorant (Phalacrocorax harrisi) drying stunted wings, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Campbell Albatross (Thalassarche impavida) portrait of two month old chick awaiting parent's feeding, Bull Rock, North Cape Colony, Campbell Island, New Zealand

Tui De Roy / Scarlet Macaw (Ara macao) flying in rainforest canopy, upper Tambopata River, Peruvian Amazon, Peru

Tui De Roy / Scarlet Macaw (Ara macao) pair perched on tree limb, originally hand raised by the research center, they are now living in the rainforest canopy, Tambopata-Candamo Reserve, Amazon Basin, Peru

Tui De Roy / Scarlet Macaw (Ara macao) pair 30 meters high in rainforest canopy, upper Tambopata River, Peruvian Amazon, Peru

Tui De Roy / Bromeliads growing in trees along stream in Bocaina National Park, Atlantic Forest, Brazil

Tui De Roy / Lava Cactus (Brachycereus nesioticus) endemic pioneering species growing only on young lava flows, Bartolome Island, Galapagos Islands, Ecuador

Tui De Roy / Campbell Albatross (Thalassarche impavida) coming in to land, Bull Rock Cape Colony, Campbell Island, New Zealand

Tui De Roy / Tundra bog, sparse moss beds in glaciated terrain, Kvitoya, eastern Svalbard, Norwegian Arctic

Tui De Roy / Buller's Albatross (Thalassarche bulleri) pair on storm-lashed western cliffs looking toward south promonitory, Snares Islands, endemic to New Zealand's southern Islands, New Zealand

Tui De Roy / Fin Whale (Balaenoptera physalus) resident adults in winter feeding grounds, Sea of Cortez, Baja California, Mexico

Tui De Roy / Fin Whale (Balaenoptera physalus) resident adult at winter feeding grounds, Sea of Cortez, Baja California, Mexico

Tui De Roy / Blue and Yellow Macaw (Ara ararauna) mixed flock sharing Erythrina tree with Mealy Parrot (Amazona farinosa) flock, Tambopata-Candamo Reserved Zone, Amazon basin, Peru

Tui De Roy / King Penguin (Aptenodytes patagonicus) group swimming underwater offshore from breeding colony, Macquarie Island, sub-Antarctica Australia

Tui De Roy / Royal Penguin (Eudyptes schlegeli) group walking to colony past Macquarie Island Cabbage (Stilbocarpa polaris) both endemic to Macquarie Island, Australia

Tui De Roy / Glacier tumbling down from granite peaks, Los Glaciares National Park, Patagonia, Argentina

Tui De Roy / Black-footed Albatross (Phoebastria nigripes) pair bonding, Midway Atoll, Hawaii

Tui De Roy / Common Cactus-Finch (Geospiza scandens) feeding on Opuntia (Opuntia sp) cactus blossom, Academy Bay, Santa Cruz Island, Galapagos Islands, Ecuador

Tui De Roy / White-capped Albatross (Thalassarche steadi) pair courting, Southwest Cape, Auckland Island, New Zealand

Tui De Roy / Antipodean Albatross (Diomedea antipodensis) courtship display often pirouetting with outstretched wings, Adams Island, Auckland's Group, New Zealand

Tui De Roy / Blue-footed Booby (Sula nebouxii) pair performing courtship dance, Seymour Island, Galapagos Islands, Ecuador

Tui De Roy / Blue-footed Booby (Sula nebouxii) male incubating eggs with webbed feet, Seymour Island, Galapagos Islands, Ecuador

Tui De Roy / White-capped Albatross (Thalassarche steadi) couple courting, Southwest Cape, Auckland Island, New Zealand