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USA, Alaska, Denali National Park, Mount Margaret, Primrose Ridge, Rock ptarmigan (Lagopus mutus), adult female, spring





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Male Rock Ptarmigan in late breeding plumage stands on a rocky ridge near Eielson Visitor Center in Denali National Park and ...
Male Rock Ptarmigan in late breeding plumage stands on a rocky ridge near Eielson Visitor Center in Denali National Park and Preserve, Interior Alaska, Spring





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Iceland. On the fjords to the north of Reykjavik, Oystercatchers (Haematopus ostralegus) congregate in large numbers. Because...
Iceland. On the fjords to the north of Reykjavik, Oystercatchers (Haematopus ostralegus) congregate in large numbers. Because of its large numbers and readily identified behaviour, the Oystercatcher is an important indicator species for the health of the ecosystems where it congregates.





El Molo Bay, situated on the eastern side of Lake Turkana, is an inhospitable place where strong winds blow incessantly. The ...
El Molo Bay, situated on the eastern side of Lake Turkana, is an inhospitable place where strong winds blow incessantly. The bay is named after the El Molo - a small tribe of fishermen and stock owners whose village can be seen in the middle distance across the bay. The mountain in the background is Mount Nyiru.





Aerial view of recent landscape development at Arbutus Ridge, Cowichan Valley, Vancouver Island, British Columbia, Canada





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Hawaii, Niihau, A dive charter vessel backs up to ´The Keyhole´ on Lehua Rock, a tuft crater/seabird sanctuary west of Kauai





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Aerial view of Mt. Kilimanjaro 19335 ft. or 5895 m, Rebmann Glacier in the foreground, summit ridge and crater floor, Tanzani...
Aerial view of Mt. Kilimanjaro 19335 ft. or 5895 m, Rebmann Glacier in the foreground, summit ridge and crater floor, Tanzania, Africa





Aerial view of Mt. Kilimanjaro 19335 ft. or 5895 m, Rebmann Glacier in the foreground, summit ridge and crater floor, Tanzani...
Aerial view of Mt. Kilimanjaro 19335 ft. or 5895 m, Rebmann Glacier in the foreground, summit ridge and crater floor, Tanzania, Africa





Residence, detail, roof-ridge, seagulls, buildings, house, brick-construction, windows, roof, brick-roof, roof tiles, ridge, ...
Residence, detail, roof-ridge, seagulls, buildings, house, brick-construction, windows, roof, brick-roof, roof tiles, ridge, animals, game-animals, birds, two, seabirds, heavens, blue, cloudless,





Woman hikes through snow while descending the Bird Ridge Trail above Turnagain Arm in Chugach State Park, Southcentral Alaska...
Woman hikes through snow while descending the Bird Ridge Trail above Turnagain Arm in Chugach State Park, Southcentral Alaska, Summer





A dawn Zodiac tour of Boatswain Bird Island just off Ascension Island in the southern tropical Atlantic Ocean. A dawn Zodiac ...
A dawn Zodiac tour of Boatswain Bird Island just off Ascension Island in the southern tropical Atlantic Ocean. A dawn Zodiac tour of Boatswain Bird Island just off Ascension Island in the southern tropical Atlantic Ocean MORE INFO Ascension Island is a remote volcanic island in the tropical waters of the South Atlantic Ocean It is located roughly 1,000 miles from the coast of Africa and 1,600 miles from the coast of South America Boatswain Bird Island is a rat and cat-free island utilized by





Aerial view, small farmer´s field with cassava planted on ridges and banana trees, Pwani Region, Tanzania, Africa





Black-necked Stilt (Himantopus mexicanus) turning eggs at nest Karl Bartel Grassland, Prairie Ridge SNA, Marion Co. Illinois





Female hiker hikes through snow while descending the Bird Ridge Trail above Turnagain Arm in Chugach State Park, Southcentral...
Female hiker hikes through snow while descending the Bird Ridge Trail above Turnagain Arm in Chugach State Park, Southcentral Alaska, Summer





An adult bald eagle sits on a rocky ridge with the fog-covered mountains in the background





France, The Alps. As seen from Air France flight from Tel Aviv to Paris - Charles de Gaulle - in December 2007.





short-tailed albatross diomedea albatrus sub-adult endangered species. recolonising midway islands, hawaiian ridge, usa





Ptarmigan Lagopus Mutus An Adult In Its White Winter Plumage At The Top Of A Mountain Ridge. February. Cairngorm Mountains, S...
Ptarmigan Lagopus Mutus An Adult In Its White Winter Plumage At The Top Of A Mountain Ridge. February. Cairngorm Mountains, Scotalnd, Uk.





Hawaii, Niihau, A dive charter vessel backs up to ´The Keyhole´ on Lehua Rock, a tuft crater/seabird sanctuary west of Kauai





Hawaii, Niihau, ´The Keyhole´ on Lehua Rock, a tuft crater/seabird sanctuary west of Kauai





Marfa Ridge, Northwest Malta, Gozo and Comino islands in Distance Bird Hunter´s Shelter, with Gozo-Malta Ferry in Background ...
Marfa Ridge, Northwest Malta, Gozo and Comino islands in Distance Bird Hunter´s Shelter, with Gozo-Malta Ferry in Background Thyme grows on the poor Limestone soil





Adult black noddy Anous minutus breeding site on Boatswain Bird Island just off Ascension Island in the southern tropical Atl...
Adult black noddy Anous minutus breeding site on Boatswain Bird Island just off Ascension Island in the southern tropical Atlantic Ocean. Adult black noddy Anous minutus breeding site on Boatswain Bird Island just off Ascension Island in the southern tropical Atlantic Ocean MORE INFO This bird is a member of the tern family and has a worldwide distribution in tropical and sub-tropical seas Ascension Island is a remote volcanic island in the tropical waters of the South Atlantic Ocean It is lo





Woman hikes up the Bird Ridge Trail in Chugach State Park with the scenic Kenai Mountains and Turnagain Arm in the background...
Woman hikes up the Bird Ridge Trail in Chugach State Park with the scenic Kenai Mountains and Turnagain Arm in the background, Southcentral Alaska, Summer





Clark's Nutcracker, Nucifraga columbiana, at Rock Cut off Trail Ridge Road, Rocky Mountain N.P., Colorado, June 2006





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Black-necked Stilt (Himantopus mexicanus) incubating eggs at nest, Karl Bartel Grassland, Prairie Ridge SNA, Marion Co. IL Il...
Black-necked Stilt (Himantopus mexicanus) incubating eggs at nest, Karl Bartel Grassland, Prairie Ridge SNA, Marion Co. IL Illinois





Male Common goldeneye performs a wing flap at Prospect Park, Wheat Ridge, Colorado 3/26/2005 Bucephala clangula





High winds above Bird Ridge Overlook, Chugach Mountains, Chugach State Park, Southcentral Alaska, Summer





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Greenland, Ilulissat, UNESCO World Heritage Site Icefjord. Seabirds use the ridge of large iceberg in the bay as a resting an...
Greenland, Ilulissat, UNESCO World Heritage Site Icefjord. Seabirds use the ridge of large iceberg in the bay as a resting and lookout location.





Young adult Hispanic woman hiking on top of Mt. Alyeska with view of Chugach Mountains & Girdwood Valley in Southcentral Alas...
Young adult Hispanic woman hiking on top of Mt. Alyeska with view of Chugach Mountains & Girdwood Valley in Southcentral Alaska





Pantanillo, Plan del Morro, Sierra Nevada National Park, M?rida, Venezuela, Andes mountains, South America, Latin America.





Woman hikes up the Bird Ridge Trail in Chugach State Park with the scenic Kenai Mountains and Turnagain Arm in the background...
Woman hikes up the Bird Ridge Trail in Chugach State Park with the scenic Kenai Mountains and Turnagain Arm in the background, Southcentral Alaska, Summer





Rock Ptarmigan (Lagopus mutus) adult, white winter plumage, on snow covered mountain ridge, Cairngorm Mountains, Highlands, S...
Rock Ptarmigan (Lagopus mutus) adult, white winter plumage, on snow covered mountain ridge, Cairngorm Mountains, Highlands, Scotland, february





Hawaii, Kauai, Na Pali Coast, Kalalau Valley and Kaaalahina Ridge, view from Kokee State Park lookout with bird flying throug...
Hawaii, Kauai, Na Pali Coast, Kalalau Valley and Kaaalahina Ridge, view from Kokee State Park lookout with bird flying through foreground





short-tailed albatross diomedea albatrus sub-adult endangered species, re-colonising midway islands, hawaiian ridge, usa





Male Rock Ptarmigan in late breeding plumage stands on a rocky ridge near Eielson Visitor Center in Denali National Park and ...
Male Rock Ptarmigan in late breeding plumage stands on a rocky ridge near Eielson Visitor Center in Denali National Park and Preserve, Interior Alaska, Spring





Great Skua (Stercorarius skua) adult pair, standing on grassy ridge, Shetland Islands, Scotland, june





The Great Hostile Camp. Bird's-eye view of a Lakota SIoux camp, probably on or near Pine Ridge Reservation, South Dakota. pho...
The Great Hostile Camp. Bird's-eye view of a Lakota SIoux camp, probably on or near Pine Ridge Reservation, South Dakota. photo by John C. Grabill, 1891





View of Turnagain Arm at sunset with Bird Point and Bird Ridge in the distance,/nSouthcentral Alaska, Fall





Yellowstone, Blue Grouse hen near Specimen Ridge and Lamar Valley at Yellowstone National Park in northern Wyoming





Wooden church with spiral cross and doves perched on a corrugated roof, St Andrews Anglican Church, Cambridge, New Zealand





Woman hikes through snow while descending the Bird Ridge Trail above Turnagain Arm in Chugach State Park, Southcentral Alaska...
Woman hikes through snow while descending the Bird Ridge Trail above Turnagain Arm in Chugach State Park, Southcentral Alaska, Summer





Aerial view of Mt. Kilimanjaro crater floor with Reusch crater, ash pit and summit ridge, Tanzania, Africa





Rock Ptarmigan (Lagopus mutus) adult male, white winter plumage, standing on mountain ridge, Cairngorm Mountains, Highlands, ...
Rock Ptarmigan (Lagopus mutus) adult male, white winter plumage, standing on mountain ridge, Cairngorm Mountains, Highlands, Scotland, february





The Gray Jay, or Whiskey_Jack Perisoreus canadensis, on snow shoes, Zopkios Ridge, Coquihalla summit, British Columbia, Canad...
The Gray Jay, or Whiskey_Jack Perisoreus canadensis, on snow shoes, Zopkios Ridge, Coquihalla summit, British Columbia, Canada





Near the Red Tower, Marfa Ridge, northwest Malta Alexander, a Bird Catcher, or kaccatur, waits inside his Blind Gozo in the d...
Near the Red Tower, Marfa Ridge, northwest Malta Alexander, a Bird Catcher, or kaccatur, waits inside his Blind Gozo in the distance





Ptarmigan Lagopus Mutus An Adult Female With Her White Winter Plumage In Profile On Top Of A Snowy Ridge. February. Cairngorm...
Ptarmigan Lagopus Mutus An Adult Female With Her White Winter Plumage In Profile On Top Of A Snowy Ridge. February. Cairngorm Mountains, Scotalnd, Uk.





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





A male Willow Ptarmigan struts along a ridge in Denali National Park, Interior Alaska, Spring





Berguv (Eagle Owl) Bubo Bubo. Bruno Liljefors (1860-1939). Black wash heightened with white. Dated 1894. 36.2 x 52.5cm





USA, Alaska, Denali National Park, Mount Margaret, Primrose Ridge, Rock ptarmigan (Lagopus mutus), adult male, spring





Alpine chough Pyrrhocorax graculus at the Mittenwalder Hoehenweg, behind Karwendelmain ridge and Pleisenspitze, Karwendel, Ty...
Alpine chough Pyrrhocorax graculus at the Mittenwalder Hoehenweg, behind Karwendelmain ridge and Pleisenspitze, Karwendel, Tyrol, Austria





Young adult Hispanic woman hiking on top of Mt. Alyeska with view of Chugach Mountains near Girdwood in Southcentral Alaska





Young adult Hispanic woman hiking on top of Mt. Alyeska with view of Chugach Mountains & Girdwood Valley in Southcentral Alas...
Young adult Hispanic woman hiking on top of Mt. Alyeska with view of Chugach Mountains & Girdwood Valley in Southcentral Alaska





Rock Ptarmigan (Lagopus mutus) adult female, white winter plumage, concealed on snow covered ridge, Cairngorm Mountains, High...
Rock Ptarmigan (Lagopus mutus) adult female, white winter plumage, concealed on snow covered ridge, Cairngorm Mountains, Highlands, Scotland, february





Scenic view of Girdwood Valley, Bird Ridge and Turnagain Arm from on top of Alyeska Ski Resort in Southcentral Alaska





Aerial picture of Menton and Ventimiglia, border ridge between France and Italy, Alpes Maritimes, Région Provence Alpes Côte ...
Aerial picture of Menton and Ventimiglia, border ridge between France and Italy, Alpes Maritimes, Région Provence Alpes Côte d´Azur, Imperia Province, France, Italy, Mediterranean, Europe





Ptarmigan Lagopus Mutus An Adult Male In Its White Winter Plumage At The Top Of A Mountain Ridge. February. Cairngorm Mountai...
Ptarmigan Lagopus Mutus An Adult Male In Its White Winter Plumage At The Top Of A Mountain Ridge. February. Cairngorm Mountains, Scotalnd, Uk.





Black-necked Stilt (Himantopus mexicanus) incubating eggs at nest Karl Bartel Grassland, Prairie Ridge SNA, Marion Co. Illino...
Black-necked Stilt (Himantopus mexicanus) incubating eggs at nest Karl Bartel Grassland, Prairie Ridge SNA, Marion Co. Illinois





USA, Alaska, Denali National Park, Mount Margaret, Primrose Ridge, Rock ptarmigan (Lagopus mutus), adult male, spring





Colony of Chinstrap penguins (Pygoscelis Antarctica) some stained with reddish guano and mud, with adult birds and chicks sta...
Colony of Chinstrap penguins (Pygoscelis Antarctica) some stained with reddish guano and mud, with adult birds and chicks standing, walking, flapping and interacting on steep rocky ridge with glaciers in background, summer, Spigot Point, Antarctica; Antarctic Peninsula; Southern Ocean





Aerial view of Mt. Kilimanjaro 19335 ft. or 5895 m, Summit Ridge top left, Southern Icefield below, Tanzania, Africa





Moose bull walking on tundra with flock of migrating sandhill cranes passing overhead, Denali National Park, Interior Alaska,...
Moose bull walking on tundra with flock of migrating sandhill cranes passing overhead, Denali National Park, Interior Alaska, Autumn





France, The Alps. As seen from Air France flight from Tel Aviv to Paris - Charles de Gaulle - in December 2007





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Ptarmigan Lagopus Mutus An Adult Female Is Partly Concealed As She Pauses On A Snow Covered Ridge. February. Cairngorm Mounta...
Ptarmigan Lagopus Mutus An Adult Female Is Partly Concealed As She Pauses On A Snow Covered Ridge. February. Cairngorm Mountains, Scotalnd, Uk.





Chinstrap penguins Pygoscelis Antarctica Surrounding the Bust of Captain Luis Alberto Pardo with the M/S Explorer in the Back...
Chinstrap penguins Pygoscelis Antarctica Surrounding the Bust of Captain Luis Alberto Pardo with the M/S Explorer in the Background Elephant Island, South Shetland Islands, Antarctica





Adult black noddy Anous minutus breeding site on Boatswain Bird Island just off Ascension Island in the southern tropical Atl...
Adult black noddy Anous minutus breeding site on Boatswain Bird Island just off Ascension Island in the southern tropical Atlantic Ocean. Adult black noddy Anous minutus breeding site on Boatswain Bird Island just off Ascension Island in the southern tropical Atlantic Ocean MORE INFO This bird is a member of the tern family and has a worldwide distribution in tropical and sub-tropical seas Ascension Island is a remote volcanic island in the tropical waters of the South Atlantic Ocean It is lo





Lesser Yellowlegs Tringa flavipes eating a dragonfly at Moose Lake, in Tumbler Ridge, British Columbia, Canada





Ptarmigan Lagopus Mutus An Adult Seems Relaxed On An Exposed Ridge As A Climber Trudges Past During A Blizzard. February. Cai...
Ptarmigan Lagopus Mutus An Adult Seems Relaxed On An Exposed Ridge As A Climber Trudges Past During A Blizzard. February. Cairngorm Mountains, Scotalnd, Uk.





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Snowy Owl (Nyctea scandiaca) immature male, first winter plumage, in flight, landing on snow covered ridge, Finland, march





Black-necked Stilt (Himantopus mexicanus) Karl Bartel Grassland, Prairie Ridge SNA, Illinois





Antartica, Antarctic Peninsula. A flock of the common place Cape Petrel (Daption capense) in flight over one of the peninsula...
Antartica, Antarctic Peninsula. A flock of the common place Cape Petrel (Daption capense) in flight over one of the peninsula's many embayments with mountain and glacier flowing off the icecap in the background.





Visiting European family singing on top of Eielson Ridge above Eielson Visitor Center, Denali National Park & Preserve, Inter...
Visiting European family singing on top of Eielson Ridge above Eielson Visitor Center, Denali National Park & Preserve, Interior Alaska, Summer





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





An aerial view of the Blue Ridge Mountains at sunrise with fog in the valley below - near Hendersonville, NC





Sooty grouse, Dendragapus fuliginosus, Hurricane Ride, Olympic National Park, Clallam County, Washington, USA





Rock Ptarmigan (Lagopus mutus) adult, white winter plumage, on snow covered ridge, Cairngorm Mountains, Highlands, Scotland





Chinstrap penguins (Pygoscelis Antarctica) many birds in breeding colony on rocky and windy mountain ridge on Liege Island in...
Chinstrap penguins (Pygoscelis Antarctica) many birds in breeding colony on rocky and windy mountain ridge on Liege Island in summer, one bird vocalizing with its head and bill upturned, Liege Island, Antarctica; Antarctic Peninsula, Southern Ocean





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Young adult Hispanic woman hiking on top of Mt. Alyeska with view of Chugach Mountains & Girdwood Valley in Southcentral Alas...
Young adult Hispanic woman hiking on top of Mt. Alyeska with view of Chugach Mountains & Girdwood Valley in Southcentral Alaska





A local ecotourism guide surveys the lowland forest from a ridge. In her daypack she carries binoculars, bird book and first ...
A local ecotourism guide surveys the lowland forest from a ridge. In her daypack she carries binoculars, bird book and first aid. Bird watching is popular here where the world record for species diversity is held.





Red Grouse (Lagopus lagopus scoticus) adult, looking over ridge, on moorland in snow, Peak District, Derbyshire, England, win...
Red Grouse (Lagopus lagopus scoticus) adult, looking over ridge, on moorland in snow, Peak District, Derbyshire, England, winter





Ptarmigan Lagopus Mutus An Adult Female Huddled On The Top Of An Icy Ridge. February. Cairngorm Mountains, Scotalnd, Uk.





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Two women trail running Bird Ridge, near Anchorage, Chugach Mountains, Chugach State Park, Summer in Southcentral Alaska.





Rock Ptarmigan (Lagopus mutus) adult male, white winter plumage, standing on mountain ridge, Cairngorm Mountains, Highlands, ...
Rock Ptarmigan (Lagopus mutus) adult male, white winter plumage, standing on mountain ridge, Cairngorm Mountains, Highlands, Scotland, february





Aerial photograph, Feldholzinsel wood, Habichtswald wooded ridge in autumn, Kassel, North Hesse, Hesse, Germany, Europe





USA, Alaska, Denali National Park, Mount Margaret, Primrose Ridge, Rock ptarmigan (Lagopus mutus), adult female, spring





Woman hikes up the Bird Ridge Trail in Chugach State Park with the scenic Kenai Mountains and Turnagain Arm in the background...
Woman hikes up the Bird Ridge Trail in Chugach State Park with the scenic Kenai Mountains and Turnagain Arm in the background, Southcentral Alaska, Summer





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Black-necked Stilt (Himantopus mexicanus) incubating, Karl Bartel Grassland, Prairie Ridge SNA, Illinois





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Ushuaia, Martial Mountains, Fuegian Andes, Ushuaia Bay, The Beagle Channel, Tierra del Fuego Archipelago, Straits of Magellan...
Ushuaia, Martial Mountains, Fuegian Andes, Ushuaia Bay, The Beagle Channel, Tierra del Fuego Archipelago, Straits of Magellan, Tierra del Fuego Province, Patagonia, Argentina.





Ptarmigan Lagopus Mutus Two Adults In Their White Winter Plumage At The Top Of A Mountain Ridge. February. Cairngorm Mountain...
Ptarmigan Lagopus Mutus Two Adults In Their White Winter Plumage At The Top Of A Mountain Ridge. February. Cairngorm Mountains, Scotalnd, Uk.





Ptarmigan Lagopus Mutus An Adult Male In Its White Winter Plumage At The Top Of A Mountain Ridge. February. Cairngorm Mountai...
Ptarmigan Lagopus Mutus An Adult Male In Its White Winter Plumage At The Top Of A Mountain Ridge. February. Cairngorm Mountains, Scotalnd, Uk.





Wild Turkey (Meleagris gallopavo) Blue Ridge Parkway, NC North Carolina 2007 Digital capture





Aerial of Cape Point, situated in the Table Mountain National Park, Cape Town, South Africa





Cross_country skier in a birch forest during the Alaska Railroad´s annual ski train to the historic town site of Curry, South...
Cross_country skier in a birch forest during the Alaska Railroad´s annual ski train to the historic town site of Curry, Southcentral Alaska, Spring

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