Nick Upton / St. Mary of the Assumption church on Bled Island, Lake Bled, with tourists visiting by boat , Slovenia, July 2010.

Nick Upton / St. Mary of the Assumption church on Bled Island, Lake Bled, with clifftop Bled castle, and the Julian Alps in the background, Slovenia, July 2010.

Nick Upton / St. Mary of the Assumption church on Bled Island, Lake Bled, with tourists visiting by boat, Slovenia, July 2010.

Nick Upton / St. Mary of the Assumption church on Bled Island, Lake Bled, framed by tree branches, with the Julian Alps in the background, Slovenia, July 2010.

Mary McDonald / Tabebuia tree (Tabebuia impetiginosa) in blossom, Pantanal, Brazil, August

Mary McDonald / Smooth-billed Ani (Crotophaga ani) perched on tree branch, in the Pantanal, Brazil, August

Mary McDonald / Southern Screamer (Chauna torquata) portrait, standing, Brazil, Pantanal, August

Mary McDonald / Ringed Kingfisher (Ceryle / Megaceryle torquata) perchedwith freshly caught fish, Pantanal, Brazil, August

Mary McDonald / Ringed Kingfisher (Ceryle / Megaceryle torquata) perched feeding on freshly caught fish, Pantanal, Brazil, August

Mary McDonald / Ringed Kingfisher (Ceryle / Megaceryle torquata) perched on a "watch point" hunting for fish, Pantanal, Brazil, August

Mary McDonald / Large-billed Tern (Phaetusa simplex) flying in the Pantanal, Brazil

Mary McDonald / Jaguar (Panthera onca) portrait, lying down along riverbank in Pantanal, Brazil

Mary McDonald / Jaguar (Panthera onca) yawning and resting along riverbank in Pantanal, Brazil

Mary McDonald / Great Kiskadee (Pitangus sulphuratus) perched on branch, in front of a sleeping Jaguar along riverbank in Pantanal, Brazil

Mary McDonald / Great Egret (Ardea alba) flying with fish in bill, Pantanal, Brazil

Mary McDonald / Great Black Hawk (Buteogallus urubitinga) perched in tree, Pantanal, Brazil.

Mary McDonald / Great Black Hawk (Buteogallus urubitinga) hunting fish, along river, Pantanal, Brazil

Mary McDonald / Gray-necked Wood Rail (Aramides cajanea) feeding off floating vegetaion, Pantanal NP, Brazil

Mary McDonald / Cattle Tyrant (Machetornis rixosus) riding on the head of a Capybara (Hydrochoerus hydrochaeris) moving through swampland. The Tyrant flycatcher is hunting for insects disturbed by the rodent. Pantana...

Mary McDonald / Capybara (Hydrochoerus hydrochaeris) juvenile walking with mother, in shallow water, in the jungle of the Pantanal, Brazil.

Mary McDonald / Buff Necked Ibis (Theristicus caudatus) wading on shoreline, Brazil, South America

Mary McDonald / Buff Necked Ibis (Theristicus caudatus) wading on shoreline, Brazil, South America

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rocks to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rocks to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rocks to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rocks to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rocks to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rocks to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rocks to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rocks to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rocks to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rock to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rock to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) feeding on an insect in Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) head portrait, holding face with hands, in Piaui, Brazil, portrait

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rocks to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rocks to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rocks to crack nuts, Piaui, Brazil

Mary McDonald / Black striped capuchin (Sapajus libidinosus) using rocks to crack nuts, Piaui, Brazil

Mary McDonald / Black-collared Hawk (Busarellus nigricollis) head portrait, perched in tree in Pantanal, Brazil

Mary McDonald / Black Howler monkey (Alouatta caraya) female climbing in tree in Pantanal, Brazil,

Mary McDonald / Bannertailed Kangaroo Rat (Dipodomys spectabilis) in nest hole at night, note full cheek pouches, captive, USA

Mary McDonald / Mountain Gorilla (Gorilla beringei beringei) mother and baby climbing tree, Group 13. Volcanoes National Park, Rwanda, East Africa

Mary McDonald / Leopard (Panthera pardus) climbing tree in Upper Mara, Masai Mara Game Reserve, Kenya, East Africa

Mary McDonald / Leopards (Panthera pardus) on termite mound in the Samburu Game Reserve, Kenya

Mary McDonald / African Buffalo (Syncerus caffer) head portrait, Lake Nakuru National Park, Kenya, East Africa

Mary McDonald / African Lion (Panthera leo) juvenile male running, Masai Mara Game Reserve, Kenya

Mary McDonald / African Lions (Panthera leo) two juvenile males greeting, Masai Mara Game Reserve, Kenya

Mary McDonald / African Lion (Panthera leo) head portrait of male, in the grasses of Lower Mara in the Masai Mara Game Reserve, Kenya

Mary McDonald / African Lion (Panthera leo) head portrait of male, in the grasses of Lower Mara in the Masai Mara Game Reserve, Kenya

Mary McDonald / Side-striped Jackal (Canis adustus) standing in grassland, Kopjes, Serengeti National Park, Tanzania

Mary McDonald / Ruppell's Long-tailed Starling (Lamprotornis purpuropterus) standing on ground, Upper Mara, Masai Mara Game Reserve, Kenya

Mary McDonald / Leopard (Panthera pardus) portrait, sitting in tree in Upper Mara, Masai Mara Game Reserve, Kenya, East Africa

Mary McDonald / Spotted / Laughing Hyena (Crocuta crocuta) female nursing pups, Upper Mara, Masai Mara Game Reserve, Kenya

Mary McDonald / Serval (Leptailurus serval) in tall grasses in Upper Mara, Masai Mara Game Reserve, Kenya

Mary McDonald / Olive Baboons (Papio anubis)baby sitting with juvenile, Samburu Game Reserve, Kenya,

Mary McDonald / Lilac-breasted Roller (Coracias caudatus) perched beak open on rocks eating bugs in Lake Nakuru National Park, Kenya

Mary McDonald / Yellow-billed Hornbill (Tockus flavirostris) perched in tree, Samburu Game Reserve, Kenya

Mary McDonald / African Lion (Panthera leo) male lying in grassland of Mara Triangle, Masai Mara Game Reserve, Kenya

Mary McDonald / Great / Eastern White Pelican (Pelecanus onocrotalus) in flight, Lake Nakuru National Park, Kenya

Mary McDonald / Broad-billed Hummingbird (Cynanthus latirostris) Arizona, USA

Mary McDonald / White-tailed Antelope Squirrel (Ammospermophilus leucurus) drinking at water's edge, alongside a Desert Cottontail (Sylvilagus audubonii) Arizona, USA.

Mary McDonald / Violet-crowned Woodnymph (Thalurania colombica) male perched in tree, Rancho Naturalista, Turrialba, Costa Rica, Central America.

Mary McDonald / Violet-crowned Woodnymph (Thalurania colombica) male perched in tree, Rancho Naturalista, Turrialba, Costa Rica, Central America.

Mary McDonald / Violet-crowned Woodnymph (Thalurania colombica) male perched in tree, Rancho Naturalista, Turrialba, Costa Rica, Central America.

Mary McDonald / Snowcap Hummingbird (Microchera albocoronata) male perched on tree branch, Turrialba, Rancho Naturalista, Costa Rica, Central America.

Mary McDonald / Snowcap Hummingbird (Microchera albocoronata) male perched on tree branch, Turrialba, Rancho Naturalista, Costa Rica, Central America.

Mary McDonald / Slaty-tailed Trogon (Trogon massena) perched on tree branch in rainforest, Costa Rica, Central America.

Mary McDonald / Red-and-yellow Barbet (Trachyphonus erythrocephalus) feeding on termities, at a termite mound, Bufallo Springs Game Reserve, Kenya, Africa, East Africa.

Mary McDonald / Olive Baboon (Papio anubis) sitting and feeding on a half eaten baby Thomson's Gazelle (Gazella thomsoni) kill, Nakuru, Kenya, East Africa.

Mary McDonald / Olive Baboon (Papio anubis) carrying a half eaten baby Thomson's Gazelle (Gazella thomsoni) kill, Nakuru, Kenya, East Africa.

Mary McDonald / Mountain Gorilla (Gorilla beringei beringei) head portrait in an expression of grimace, Rwandan jungle in the Volcanoes NP, Rwanda, Central Africa.

Mary McDonald / Montezuma's Oropendola (Psarocolius oropendola)perched on a Palm frond, calling, Arenal Observatory Lodge, Arenal Volcano, Costa Rica, Central America.

Mary McDonald / Marabou Stork (Leptoptilos crumeniferus) perched on the spine of a large mammal carcass, feeding on remains, Ndutu, Serengeti NP, Tanzania, East Africa.

Mary McDonald / Marabou Stork (Leptoptilos crumeniferus) feeding on turtle, Ndutu, Serengeti NP, Tanzania, East Africa.

Mary McDonald / African Lions (Panthera leo) two males fighting, Ndutu, Serengeti NP, Tanzania, East Africa.

Mary McDonald / Bearded vulture (Gypaetus barbatus) juvenile in flight, Simien Mountains National Park, Ethiopia, East Africa.

Mary McDonald / Bearded vulture (Gypaetus barbatus) close up of juvenile in flight, Simien Mountains National Park, Ethiopia, East Africa.

Mary McDonald / Bearded vulture (Gypaetus barbatus) juvenile in flight, Simien Mountains National Park, Ethiopia, East Africa.

Mary McDonald / King Vulture (Sarcoramphus papa) portrait, standing in grassland. Costa Rica, Central America.

Mary McDonald / Keel-billed Toucan (Ramphastos sulfuratus) adult in full breeding plumage on a tree limb at the edge of the lowland rainforest. Laguana del Lagarto, Costa Rica, Central America.

Mary McDonald / Keel-billed Toucan (Ramphastos sulfuratus) adult in full breeding plumage on a tree limb at the edge of the lowland rainforest. Laguana del Lagarto, Costa Rica, Central America.

Mary McDonald / Jaguar (Panthera onca) head portrait, swimming, the Pantanal, Brazil, South America.

Mary McDonald / Green-crowned Brillant (Heliodoxa jacula) male perched on tree limb, Bosque de Paz, Costa Rica, Central America.

Mary McDonald / Green-breasted Mango Hummingbird (Anthracothorax prevostii) male hovering at feeder Rancho Naturalista, Turrialba, Costa Rica, Central America.

Mary McDonald / Grant's Gazelle (Gazella granti) head portrait, Ngorongoro Crater, Tanzania, East Africa.

Mary McDonald / Gelada baboon (Theropithecus gelada) head portrait of adult, Simien Mountains National Park, Ethiopia, East Africa.

Mary McDonald / Gelada baboon (Theropithecus gelada) portrait of baby, sitting crouched next to adult. Simien Mountains National Park, Ethiopia, East Africa.

Mary McDonald / Gambel's Quail (Callipepla gambelii) male drinking at edge of water, with reflections. Arizona, USA.

Mary McDonald / Gambel's Quail (Callipepla gambelii) chicks, drinking at edge of water, with reflections. Arizona, USA.

Mary McDonald / Desert Cottontail (Sylvilagus audubonii) drinking at waters edge, alongside a female Gambel's Quail (Lophortyx gambelii) Arizona, USA.

Mary McDonald / Dark Chanting Goshawk (Melierax metabates) perched on tree branch, feeding on an Agama lizard. Ndutu, Serengeti NP, Tanzania, East Africa.

Mary McDonald / Collared Aracari (Pteroglossus torquatus) jumping / landing on branch, Costa Rica, Central America.

Mary McDonald / Collared Aracari (Pteroglossus torquatus) perched on branch, Costa Rica, Central America.

Mary McDonald / Chestnut-mandibled Toucan (Ramphastos ambiguus swainsonii) adult bird perched on the edge of the forest. Laguana del Lagarto, Costa Rica, Central America.

Mary McDonald / Cheetah (Acinonyx jubatus) with gazelle kill, Ndutu, Serengeti NP, Tanzania, East Africa.