European roller (Coracias garrulus) on top, Von der Decken's hornbill in centre, above Ashy starling (Lamprotornis unicolor), Taita Hills, Kenya, East Africa, Africa

White-backed vultures (Gyps africanus) perching on a tree top, Savuti, Chobe National Park, Botswana, Africa

White-backed vultures (Gyps africanus) perching on a tree top, Savuti, Chobe National Park, Botswana, Africa

White storks (Ciconia ciconia), nesting on the top of fruit trees, Algarve, Portugal, Europe

Green Iguana (Iguana iguana), on tree top, Amazon basin, Brazil, South America

White storks (Ciconia ciconia), nesting on the top of electric pylons, Algarve, Portugal, Europe

Portrait of girl with crossed arms smiling at camera, Abala, Afar Region, Ethiopia, Africa

White storks (Ciconia ciconia), nesting on the top of fruit trees, Algarve, Portugal, Europe

The ancient medieval tower of Rocca Corneta on the top of a hill in autumn, Emilia Romagna, Italy, Europe

Kauri Pine tree, Barron Gorge National Park, Queensland, Australia

Underground mine of the family Bevan in Lightning Ridge, near the Queensland border, opal settlement, New South Wales, Australia

Kids climbing an old tree near Hotel Sipan, Sipanska Luka, Sipan island, Elaphiti Islands, northwest of Dubrovnik, Croatia

Cyclist on his way to Bothmer Castle, Feston Alley, Bothmer Castle, biggest Baroque Style castle in Mecklenburg, Kluetzer Winkel, backcountry, coast of the Baltic Sea, Kluetz, Mecklenburg-West Pomerania, Germany

Visitor searching for opals, opal mining fields, Aboriginal Land, Stuart Highway near Marla Opalsiedlung, South Australia

Two older men searching for opals, opal mining fields, Aboriginal Land, Stuart Highway near Marla Opalsiedlung, South Australia

Bar under palm trees, Mekong river after sunset, Luang Prabang, Laos

Geoff Mercer, owns a hotel and lives on Great Keppel Island, with tourist on the way to the beach, Great Keppel Island, Great Barrier Reef Marine Park, UNESCO World Heritage Site, Queensland, Australia

Jadeberg island, Huc Bridge, Hoan Kiem Lake (Lake of the Returned Sword), Hanoi, Bac Bo, Vietnam

Stage Coach Inn Restaurant, Manitou Springs, Colorado, USA, North America, America

Old Man with cigar in front of village church, Vinales Valley, Province Pinar del Rio, Cuba, Greater Antilles, Antilles, Carribean, West Indies, Central America, North America, America

Restaurant at harbor, Bol, Brac, Split-Dalmatia county, Croatia

Old European Beech (Fagus sylvatica) in spring, worm's-eye view

Christmas flat lay with female hands tying a ribbon on a present, gift boxes, fir tree branch at wooden background. Wrapping Xmas present top view, cozy festive composition

Christmas flat lay with female hands tying a ribbon on a present, gift boxes, fir tree branch at wooden background. Wrapping Xmas present top view, cozy festive composition

Gravel plant on a branch of the Danube river, Hollerdau region, Bavaria, Germany, Europe

BMW branch with convertible exhibition vehicle on the Kurfuerstendamm, Berlin, Germany, Europe

Barbary macaque (Macaca sylvanus), Gibraltar, Europe

A Great Horned Owl on a branch, portrait of an American eagle owl, owls on the branch

Stack of wood with birch and beech wood

Christmas flat lay with female hands holding a cup of marshmallow cacao, wrapped presents, fir tree branch at wooden background. Xmas decoration top view, cozy festive composition, copy space

Aerial view, Deutsche Bank branch inside former German Federal Railways building, Essen, Ruhr Area, North Rhine-Westphalia, Germany, Europe

Snow-covered branches of a tree

Aerial view, roof with solar panels, German branch office of Pilkington, Rotthausen district, Gelsenkirchen, Ruhr area, North Rhine-Westphalia, Germany, Europe

Drainage area of New Blue Spring Terrace, limestone sinter terraces, geysers, hot springs, colorful thermophilic bacteria, microorganisms, Mammoth Hot Springs Terraces in Yellowstone National Park, Wyoming, United States of America, USA

Gravel plant on a branch of the Danube river, Hollerdau region, Bavaria, Germany, Europe

Aerial view, roof with solar panels, German branch office of Pilkington, Rotthausen district, Gelsenkirchen, Ruhr area, North Rhine-Westphalia, Germany, Europe

A man prepares to take his 1st basejump of the day at the top of Basaseachic waterfalls in Chihuahua, Mexico

Zainabu Ramadhani, 19, (yellow and red patterned skirt) her mother Fatma Mziray, age 38, (blue head dress) and Fatma’s sister-in-law Zaitun Hamad, 18, (orange wrap and white top) walk home after gathering firewood near Fatma’s home in Mforo. Mforo is near Moshi, Tanzania. Fatma Mziray is a Solar Sister entrepreneur who sells both clean cookstoves and solar lanterns. Fatma heard about the cookstoves from a Solar Sister development associate and decided to try one out. The smoke from cooking on her traditional wood stove using firewood was causing her to have a lot of heath problems, her lungs congested her eyes stinging and her doctor told her that she had to stop cooking that way. Some days she felt so bad she couldn't go in to cook. Fatma said, “Cooking for a family, preparing breakfast, lunch and dinner I used to gather a large load of wood every day to use. Now with the new cook stove the same load of wood can last up to three weeks of cooking. “With the extra time I can develop my business. I also have more time for the family. I can monitor my children’s studies. All of this makes for a happier family and a better relationship with my husband. Since using the clean cookstove no one has been sick or gone to the hospital due to flu.” Fatma sees herself helping her community because she no longer sees the people that she has sold cookstoves have red eyes, coughing or sick like they used to be. She has been able to help with the school fees for her children, purchase items for the home and a cow. “What makes me wake up early every morning and take my cookstoves and go to my business is to be able to take my family to school as well as to get food and other family needs.”

Northern Hawk Owl (Surnia ulula), known for sitting on the highest perch possible while looking for prey such as voles moving below. This one sits on the top of a tree against a blue sky, South-central Alaska, Anchorage, Alaska, United States of America

A black bear (Ursus americanus) cub hanging onto a branch at the top of a tree against a blue sky; Alaska, United States of America

Well Worn Canadian Flag On Wooden Branch Propped In A Pile Of Rocks On Top Of A Mountain With Mountain Range And Blue Sky In The Background, Alberta, Canada

Northern Hawk Owl (Surnia ulula), known for sitting on the highest perch possible while looking for prey such as voles moving below. This one sits on the top of a tree against a blue sky, South-central Alaska, Anchorage, Alaska, United States of America

Northern Hawk Owl (Surnia ulula), known for sitting on the highest perch possible while looking for prey such as voles moving below. This one flies from the top of a tree with a rodent in it's claws, Alaska, United States of America

Northern Hawk Owl (Surnia ulula), known for sitting on the highest perch possible while looking for prey such as voles moving below. This one sits on the top of a tree against a blue sky with a rodent in it's mouth, Alaska, United States of America

Northern Hawk Owl (Surnia ulula), known for sitting on the highest perch possible while looking for prey such as voles moving below. This one sits on the top of a tree against a blue sky, Alaska, United States of America

A Cotton-Top Tamarin Monkey (Saguinus Oedipus) At The Singapore Zoo, Singapore

Bird Sitting In A Tree

A fish eagle, Haliaeetus vocifer, perched on top of a branch.

A lilac-breasted roller, Coracias caudatus, perches at the top of a dead branch, looking away, against blue grey skies, Londolozi Game Reserve, Sabi Sands, Greater Kruger National Park, South Africa

USA, Pennsylvania, Gettysburg, Little Round Top, historical canon from American Civil War

Spannish imperial eagle (Aquila adalberti) perched on a branch, Spain

Hawk Owl at top of tree, Finland