Edited by Luke, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Mark Peck, some rights reserved (CC BY-NC-SA)
- 2. (c) Kyle Tansley, some rights reserved (CC BY-NC), uploaded by Kyle Tansley
- 3. (c) John D Reynolds, some rights reserved (CC BY-NC), uploaded by John D Reynolds
- 4. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 5. (c) Joseph F. Pescatore, some rights reserved (CC BY-ND)
- 6. (c) Bird Explorers, some rights reserved (CC BY-NC), uploaded by Bird Explorers
- 7. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 8. (c) Joe McKenna, some rights reserved (CC BY-NC)
- 9. (c) Rhododendrites, some rights reserved (CC BY-SA)
- 10. (c) arbyreed, some rights reserved (CC BY-NC-SA)
- 11. (c) Ralf Nowak, some rights reserved (CC BY-NC-SA)
- 12. (c) Jen Goellnitz, some rights reserved (CC BY-NC)
- 13. (c) Kelly Colgan Azar, some rights reserved (CC BY-ND)
- 14. (c) Laura Gooch, some rights reserved (CC BY-NC-SA)
- 15. (c) Cephas, some rights reserved (CC BY-SA)
- 16. (c) joannerusso, some rights reserved (CC BY-NC), uploaded by joannerusso
- 17. (c) uzun, some rights reserved (CC BY-NC), uploaded by uzun
- 18. (c) Shenandoah National Park, some rights reserved ()
- 19. (c) Dan Pancamo, some rights reserved (CC BY-SA)
- 20. (c) Tom Murray, some rights reserved (CC BY-NC)
- 21. (c) Kristi, some rights reserved (CC BY-NC-SA)
- 22. (c) Elizabeth Olan Palma, some rights reserved (CC BY-NC), uploaded by Elizabeth Olan Palma
- 23. (c) unnormalized, some rights reserved (CC BY-SA)
- 24. (c) Maris Pukitis, some rights reserved (CC BY-NC-SA)
- 25. (c) Tony Hisgett, some rights reserved (CC BY)
- 26. (c) Charlotte Bill, some rights reserved (CC BY-NC), uploaded by Charlotte Bill
- 27. (c) Kent C. Jensen, some rights reserved (CC BY-NC), uploaded by Kent C. Jensen
- 28. (c) Tim Harding, some rights reserved (CC BY-NC-ND)
- 29. (c) Jerry A. Payne, some rights reserved (CC BY)
- 30. (c) Josh Vandermeulen, some rights reserved (CC BY-NC-ND), uploaded by Josh Vandermeulen
- 31. (c) Joseph D Kurtz, some rights reserved (CC BY-NC), uploaded by Joseph D Kurtz
- 32. (c) Steve Thompson, some rights reserved (CC BY-NC-SA)
- 33. (c) Francesco Veronesi, some rights reserved (CC BY-NC-SA)
- 34. (c) Gareth Rasberry, some rights reserved (CC BY-SA)
- 35. (c) guyincognito, some rights reserved (CC BY-NC), uploaded by guyincognito
- 36. (c) John Murnane, some rights reserved (CC BY-NC), uploaded by John Murnane
- 37. (c) Richard Chamberlain, some rights reserved (CC BY-NC), uploaded by Richard Chamberlain
- 38. (c) jayras, some rights reserved (CC BY-NC), uploaded by jayras
- 39. (c) Jamie Chavez, some rights reserved (CC BY-NC)
- 40. (c) Sergey Pisarevskiy, some rights reserved (CC BY-NC-SA)
- 41. (c) Noah Frade, some rights reserved (CC BY-NC-ND), uploaded by Noah Frade
- 42. (c) Blake Matheson, some rights reserved (CC BY-NC)
- 43. (c) Fyn Kynd, some rights reserved (CC BY-SA), uploaded by Fyn Kynd
- 44. (c) Dave Govoni, some rights reserved (CC BY-NC-SA)
- 45. (c) Richard Griffin, some rights reserved (CC BY-NC-SA)
- 46. (c) Bill Carrell, some rights reserved (CC BY-NC-ND), uploaded by Bill Carrell
- 47. (c) Mdf, some rights reserved (CC BY-SA)
- 48. (c) Rick Leche, some rights reserved (CC BY-NC-ND)
- 49. (c) vladimir_m, some rights reserved (CC BY-NC), uploaded by vladimir_m
- 50. (c) Jim Johnson, some rights reserved (CC BY-NC-ND), uploaded by Jim Johnson
- 51. (c) Jean-Guy Dallaire, some rights reserved (CC BY-NC-ND)
- 52. (c) gbudyk, some rights reserved (CC BY-NC-ND), uploaded by gbudyk
- 53. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 54. (c) Becky Matsubara, some rights reserved (CC BY)
- 55. (c) JoAnne-Russo, some rights reserved (CC BY-NC)
- 56. (c) Ad Konings, some rights reserved (CC BY-NC), uploaded by Ad Konings
- 57. (c) Russ Hoverman, some rights reserved (CC BY-NC), uploaded by Russ Hoverman
- 58. (c) Stephen Taylor, some rights reserved (CC BY-NC), uploaded by Stephen Taylor
- 59. (c) Oscar Johnson, some rights reserved (CC BY-NC-ND), uploaded by Oscar Johnson
- 60. (c) BJ Stacey, some rights reserved (CC BY-NC)
- 61. (c) Ximo Galarza, some rights reserved (CC BY-NC-SA)
