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  1. Lesser Flamingo flock of four flying over soda flats at the edge of Lake Magadi, Kenya
  2. Mesquite Flat Sand Dunes, Death Valley National Park, California
  3. Canada Goose (Branta canadensis) flock flying, North America
  4. Sand dunes, Coral Pink Sand Dunes State Park, Utah
  5. Lesser Flamingo flock taking flight from the surface of a lake, Kenya
  6. Greater Prairie Chicken male in courtship display, Eagle Lake, Texas
  7. Roseate Spoonbill (Ajaja ajaja) wading, North America
  8. Kaiparowits Plateau, Grand Staircase, Escalante National Monument, Utah
  9. Mesquite Flat Sand Dunes, Death Valley National Park, California
  10. Hoodoos In Winter, Bryce Canyon National Park
  11. Tiger-striped Leaf Frog (Phyllomedusa tomopterna) on Heliconia, Costa Rica
  12. Lesser Flamingo group feeding enmass in the shallow waters of Lake Bogoria, Kenya
  13. Coastline and Perce Rock, a limestone formation, at low tide, Quebec, Canada
  14. Bow River and Sawback Range, Banff National Park, Alberta, Canada
  15. Lesser Flamingo group parading in a mass courtship dance, Lake Bogoria, Kenya
  16. Cloud over White Sands National Monument, Chihuahuan Desert, New Mexico
  17. Hooded Merganser (Lophodytes cucullatus) female portrait, British Columbia, Canada
  18. Mallard (Anas platyrhynchos) female portrait, North America
  19. Cloudy skies over Green River, Bridger-Teton National Forest, Wyoming
  20. Sandhill Crane (Grus canadensis) flying, Bosque Del Apache, New Mexico
  21. Elephant Butte from North Window viewpoint, Monument Valley, Arizona
  22. Marsh Wren singing while perching on a Common Cattail, Alberta, Canada
  23. Western Gulls (Larus occidentalis) flying, North America
  24. Mesquite Flat Sand Dunes, Death Valley National Park, California
  25. Butte, Bryce Canyon National Park, Utah
  26. Northern Elephant Seal female laying on beach, California coast
  27. Agathla Peak, the basalt core of an extinct volcano, Monument Valley, Arizona
  28. Black-necked Stilt (Himantopus mexicanus) couple mating, North America
  29. Paper Kite Butterflies Flying, Philippines
  30. Northern Elephant Seal bull laying at surf's edge, Point Piedras Blancas, California
  31. Kelso Dunes and grasses, Mojave National Preserve, California
  32. River aux Sables, Chutes Provincial Park, Ontario, Canada
  33. Rhinoceros Snake (Rhynchophis boulengeri) in tree, Costa Rica
  34. Colorado River at Horseshoe bend near Page, Arizona
  35. Wood Duck (Aix sponsa) male portrait, British Columbia, Canada
  36. Meeks Mesa, Capitol Reef National Park, Utah
  37. Squirreltail Barley and Tufa Towers silhouetted at dawn, Mono Lake, California
  38. East and West Mittens, buttes with rippled sand, Monument Valley, Arizona
  39. Fortress Mountain shrouded in clouds, Kananaskis Country, Alberta, Canada
  40. American Oystercatcher (Haematopus palliatus) wading, North America
  41. Toadstool Caprocks, Grand Staircase, Escalante National Monument, Utah
  42. Wind ripples in sand dunes, Coral Pink Sand Dunes State Park, Utah
  43. Joshua Tree, Joshua Tree National Park, California
  44. Marbled Godwit (Limosa fedoa) stretching its wings, California
  45. Temescal Hills, southern California
  46. Western Grebe couple with one parent carrying chick on its back, New Mexico
  47. Coastline and Perce Rock, a limestone formation, Quebec, Canada
  48. Hooded Merganser (Lophodytes cucullatus) female portrait, British Columbia, Canada