White Rhinoceros (Ceratotherium simum) and Red-billed Oxpecker (Buphagus erythrorhynchus), Kruger National Park, South Africa, Africa

Gray Heron (Grey Heron) (Ardea cinerea), Kruger National Park, South Africa, Africa

Gray Heron (Grey Heron) (Ardea cinerea) drying a wing, Kruger National Park, South Africa, Africa

Woolly-necked Stork (Ciconia episcopus) drying its wings, Kruger National Park, South Africa, Africa

White-faced Whistling Duck (Dendrocygna viduata) adult and duckling, Kruger National Park, South Africa, Africa

Red-necked Spurfowl (Red-necked Francolin) (Francolinus afer) (Pternistes afer), Kruger National Park, South Africa, Africa

European Roller (Coracias garrulus) with a Jones' Burrowing Scorpion (Cheloctonus jonesii), Kruger National Park, South Africa, Africa

Cape Buffalo (African Buffalo) (Syncerus caffer), Kruger National Park, South Africa, Africa

European Roller (Coracias garrulus) flipping a grasshopper, Kruger National Park, South Africa, Africa

Wattled Starling (Creatophora cinerea), male in breeding plumage, Kruger National Park, South Africa, Africa

Woodland Kingfisher (Halcyon senegalensis), Kruger National Park, South Africa, Africa

Southern Red-billed Hornbill (Tockus rufirostris), Kruger National Park, South Africa, Africa

Marabou Stork (Leptoptilos crumeniferus), Kruger National Park, South Africa, Africa

White-fronted Bee-eater (Merops bullockoides), Kruger National Park, South Africa, Africa

Red-necked Spurfowl (Red-necked Francolin) (Francolinus afer) (Pternistes afer), Kruger National Park, South Africa, Africa

Southern Yellow-billed Hornbill (Tockus leucomelas), Kruger National Park, South Africa, Africa

Cape Buffalo (Syncerus caffer) with a Yellow-billed Oxpecker (Buphagus africanus), Kruger National Park, South Africa, Africa

Martial Eagle (Polemaetus bellicosus), juvenile, Kruger National Park, South Africa, Africa

Southern Yellow-billed Hornbill (Tockus leucomelas), Kruger National Park, South Africa, Africa

Natal Francolin (Natal Spurfowl) (Pternistes natalensis), Kruger National Park, South Africa, Africa

Red-billed Oxpecker (Buphagus erythrorhynchus) on an impala, Kruger National Park, South Africa, Africa

Lilac-breasted Roller (Coracias caudata) with an insect carcass, Kruger National Park, South Africa, Africa

Common Loon (Gavia immer), Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Yellow-headed Blackbird (Xanthocephalus xanthocephalus), female, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Lilac-breasted Roller (Coracias caudata), Kruger National Park, South Africa, Africa

Common Loon (Gavia immer) adult and chick on its back, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Common Loon (Gavia immer) adult feeding a chick, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Common Loon (Gavia immer) adult feeding a chick, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Common Loon (Gavia immer), Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Crested Barbet (Trachyphonus vaillantii), Kruger National Park, South Africa, Africa

Marabou Stork (Leptoptilos crumeniferus), Kruger National Park, South Africa, Africa

Marsh Wren (Cistothorus palustris), Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Yellow-headed Blackbird (Xanthocephalus xanthocephalus), female, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Common Loon (Gavia immer) on a nest, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Common Loon (Gavia immer), two chicks, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Common Loon (Gavia immer), Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Common Loon (Gavia immer) adult and two chicks on its back, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Common Loon (Gavia immer) adult and two chicks, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Southern Yellow-Billed Hornbill (Tockus leucomelas), Kruger National Park, South Africa, Africa

Dalmatian Pelican (Pelecanus crispus), near threatened status, France, Europe

Dalmatian Pelican (Pelecanus crispus), near threatened status, France, Europe

Greater Flamingo (Phoenicopterus roseus), France, Europe

Altar of Confucius, Temple of Literature, a Confucian temple formerly a center of learning in Hanoi, Vietnam, Indochina, Southeast Asia, Asia

Antequera is known for traditional Semana Santa (Holy Week) processions leading up to Easter, Antequera, Andalucia, Spain, Europe

St. James's Park, Horse Guards and London Eye, London, England, United Kingdom, Europe

A person feeds pigeons in Piazza Duomo (Cathedral Square), Milan, Lombardy, Northern Italy, Italy, Europe

Lone tree with swans, Milarrochy Bay, Loch Lomond, Scotland, United Kingdom, Europe

Common Loon (Gavia immer) adult with two chicks on its back, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Bald Eagle (Haliaeetus leucocephalus) with a Canada Goose (Branta canadensis) gosling, Jasper National Park, Alberta, Canada, North America

Common Loon (Gavia immer) adult with two chicks, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Common Loon (Gavia immer), Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Common Loon (Gavia immer) adult with two chicks, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

King eider (Somateria spectabilis) drake amongst common eider (Somateria mollissima), in Longyearbyen, Spitsbergen, Arctic, Norway, Europe

Drake common eider (Somateria mollissima) in flight in breeding plumage, Longyearbyen, Spitsbergen, Arctic, Norway, Europe

Blooming moon jellyfish (Aurelia aurita), Pond Island in Kelp Bay, Baranof Island, southeast Alaska, United States of America, North America

Blooming moon jellyfish (Aurelia aurita), Pond Island in Kelp Bay, Baranof Island, southeast Alaska, United States of America, North America

Train arriving at Railway Station in Riobamba, Chimborazo Province, Ecuador, South America

An adult South Georgia pipit, Anthus antarcticus, endemic to South Georgia, Peggotty Bluff, South Georgia Island, Atlantic Ocean

An endemic adult South Georgia pintails, Anas georgica, in flight at Moltke Harbour, Royal Bay, South Georgia Island, Atlantic Ocean

South American sea lions, Otaria flavescens, on a small islet in the Beagle Channel, Ushuaia, Argentina, South America

Begijnhof, Bruges, UNESCO World Heritage Site, Flemish Region, West Flanders, Belgium

Big Crane Pictograph, made by Ancestral Puebloans, approximately 900-1000 years old, Bear's Ears National Monument, Utah, United States of America, North America

National Orchid Garden, Botanic Garden, UNESCO World Heritage Site, Singapore, Southeast Asia, Asia

Black-browed albatross, Thalassarche melanophris, courtship display on New Island, Falkland Islands, South Atlantic Ocean

Adult grey-headed albatross, Thalassarche chrysostoma, returning to nest site at Elsehul, South Georgia Island, Atlantic Ocean

Pub along Birmingham Canal Old Line, Birmingham, England, United Kingdom, Europe

Chief Keyan Totem Pole, Ketchikan, Alaska, United States of America, North America

Condor flying at Cerro Torres, Los Glaciares National Park, UNESCO World Heritage Site, Santa Cruz Province, Patagonia, Argentina, South America

Condor in flight, Los Glaciares National Park, Santa Cruz Province, Patagonia, Argentina, South America

Red-backed Hawk (Variable hawk) in flight, Los Glaciares National Park, Santa Cruz Province, Patagonia, Argentina, South America

Bald Eagle, Valdez, Prince William Sound, Alaska, United States of America, North America

Chimango at El Chalten, Santa Cruz Province, Patagonia, Argentina, South America

Red-backed Hawk (Variable hawk), Los Glaciares National Park, Santa Cruz Province, Patagonia, Argentina, South America

Three Intha Leg rowers on Inle Lake, Shan State, Myanmar (Burma), Asia

Humpback whale (Megaptera novaeangliae) flukes-up dive in Monterey Bay National Marine Sanctuary, California, United States of America, North America

View of the National Stadium (Bird's Nest), Olympic Green, Xicheng, Beijing, People's Republic of China, Asia

View of the National Stadium (Bird's Nest), Olympic Green, Xicheng, Beijing, People's Republic of China, Asia

Tourists descends from Hafelekar peak, the top of ski resorts of Innsbruck, Tyrol, Austria, Europe

Curlew (Numenius arquata) group flying over salt marsh bordering the River Severn estuary, Gloucestershire, England, United Kingdom, Europe

Great white egret (Ardea alba) catching fish, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, United States of America, North America

Scarlet Macaws (Ara macao) in flight, Osa Peninsula, Corcovado National Park, Costa Rica, Central America

Scarlet Macaws (Ara macao), Corcovado National Park, Osa Peninsula, Costa Rica, Central America

Flock of Chilean flamingoes (Phoenicopterus chilensis) in flight, Torres del Paine National Park, Patagonia, Chile, South America

Scarlet Macaws looking in the same direction, Osa Peninsula, Corcovado National Park, Costa Rica, Central America

Sheepwash Bridge across the River Wye in Ashford-in-the-Water, Peak District, Derbyshire, England, United Kingdom, Europe

Two Gentoo penguins fighting over territory on the Antarctic Peninsula, Antarctica, Polar Regions

Canada goose foraging on grass by a lake, with clear water background, United Kingdom, Europe

Historic medieval Soutomaior Castle (Castelo de Soutomaior), Pontevedra, Galicia, Spain, Europe

Tawny eagle (Aquila rapax) in flight, Zimanga private game reserve, KwaZulu-Natal, South Africa, Africa

White-backed vultures (Gyps africanus) fighting, Zimanga private game reserve, KwaZulu-Natal, South Africa, Africa

Malachite kingfisher (Corythornis cristatus), Chobe National Park, Botswana, Africa

African hoopoe (Upupa africana), Zimanga game reserve, KwaZulu-Natal, South Africa

Ostrich (Struthio camelus), Kgalagadi Transfrontier Park, Northern Cape, South Africa

Saddle-billed stork (Ephippiorhynchus senegalensis) female, Chobe National Park, Botswana, Africa

Roseate spoonbills (Platalea ajaja), Lagoon, Punta Sur Eco Park, Cozumel Island, Quintana Roo, Mexico, North America

Gentoo penguins (Pygoscelis papua) breeding colony, the Neck, Saunders Island, Falkland Islands, South America

Pair of Dolphin gulls (Leucophaeus scoresbii) on a seaweed covered rock, Sea Lion Island, Falkland Islands, South America

A group of Gentoo penguins (Pygocelis papua papua) caught in a sand storm, Sea Lion Island, Falkland Islands, South Atlantic, South America

Blue wildebeest (Connochaetes taurinus) (gnu), Amboseli National Park, Kenya, East Africa, Africa

Two wet striated caracara (Phalcoboenus australis) in front of a colony of king cormorants, Sea Lion Island, Falkland Islands, South America