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  1. Red-tailed Hawk at a raptor rehabilitation center, New York
  2. Great Egret displaying during courtship in breeding plumage, Florida
  3. Saguaro cactus and waterfall, Arizona
  4. Green Heron perching on mangrove roots, Florida
  5. Saguaro cactus, Ocotillo, Prickly Pear, and Cholla cactus, Sonoran Desert, Arizona
  6. Domestic Chicken rooster, Kauai, Hawaii
  7. Saguaro cacti in desert, Arizona
  8. Saguaro cactus in desert, Arizona
  9. Mountain Lion, Montana
  10. Saguaro cactus in snow, Saguaro National Park, Tucson, Arizona
  11. Great Egret pair in nest in breeding plumage, Florida
  12. Tricolored Heron wading, Rio Grande Valley, Texas
  13. Blue Jay carrying peanut, Long Island, New York
  14. Anasazi Indian cliff dwellings, Canyon de Chelly National Monument, Arizona
  15. Booted Racket-tail hummingbird and Western Emerald hummingbird
  16. Mexican Golden Poppy flowers, Madera Canyon, Arizona
  17. Saguaro cactus, Arizona
  18. Buff-tailed Coronet hummingbird feeding on flower, Andes, Ecuador
  19. Great Blue Heron parent in nest with chicks, Venice Rookery, Florida
  20. Soaptree Yucca and rainbow, White Sands National Monument, New Mexico
  21. Bald Eagle flying over water, Kenai Peninsula, Alaska
  22. Indigo Bunting male, Rio Grande Valley, Texas
  23. Bald Eagles perched on snag in snow, Kenai Peninsula, Alaska
  24. Cactus flowering, Arizona
  25. Wild Horse herd running, Wyoming
  26. Wolf, North America
  27. Great Egret in breeding plumage, Florida
  28. Black-chinned Hummingbird parent feeding chick in nest, North America
  29. Sandstone walls, Antelope Canyon, Arizona
  30. Western Emerald hummingbird feeding on flower, Andes, Ecuador
  31. Anna's Hummingbird feeding on flower nectar, Santa Rita Mountains, Arizona
  32. River valley, Big Horn Mountains, Wyoming
  33. Great Egret displaying during courtship in breeding plumage, Florida
  34. Snow Goose flock taking flight, Bosque del Apache National Wildlife Refuge
  35. Wood Duck male in breeding plumage, California
  36. Greater Flamingo (Phoenicopterus ruber) close up of feathers, San Diego Zoo, California
  37. Tricolored Heron wading, Rio Grande Valley, Texas
  38. Wolf pup, Montana
  39. Great Egret carrying nesting material, Florida
  40. Northern Cardinal father and chicks in nest, Green Valley, Arizona
  41. Sandhill Crane trio at sunrise, Bosque Del Apache National Wildlife Refuge, New Mexico
  42. Sandstone walls, Antelope Canyon, Arizona
  43. Northern Cardinal male, Green Valley, Arizona
  44. Northern Cardinal male, Long Island, New York
  45. Rufous Hummingbird feeding on flower nectar, North America
  46. Mexican Golden Poppy flowers and cactus, Arizona
  47. Spider Rock and fall colored trees in river valley, Arizona
  48. Mountain Lion in tree, Montana