Photos:
- 1. (c) Vilseskogen, some rights reserved (CC BY-NC-SA)
- 2. (c) 종현, some rights reserved (CC BY-SA)
- 3. (c) Michael Bok, some rights reserved (CC BY-NC-SA)
- 4. (c) Dan Mullen, some rights reserved (CC BY-NC-ND)
- 5. (c) Roberta Laidman, some rights reserved (CC BY-NC)
- 6. (c) Laura Gooch, some rights reserved (CC BY-NC-SA)
- 7. (c) James Gaither, some rights reserved (CC BY-NC-ND)
- 8. (c) moviecoco568, some rights reserved (CC BY)
- 9. (c) Bryan, some rights reserved (CC BY-NC), uploaded by Bryan
- 10. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 11. (c) Gavan Watson, some rights reserved (CC BY-NC-ND)
- 12. (c) Kent Miller, some rights reserved (CC BY-ND), uploaded by Kent Miller
- 13. (c) wplynn, some rights reserved (CC BY-ND)
- 14. (c) botanygirl, some rights reserved (CC BY), uploaded by botanygirl
- 15. (c) Jim Johnson, some rights reserved (CC BY-NC-ND), uploaded by Jim Johnson
- 16. (c) jacki-dee ('retro look' option please), some rights reserved (CC BY-NC-ND)
- 17. (c) Jason M Crockwell, some rights reserved (CC BY-NC-ND), uploaded by Jason M Crockwell
- 18. (c) Photo by David J. Stang, some rights reserved (CC BY-SA)
- 19. (c) Eric Keith, some rights reserved (CC BY-NC), uploaded by Eric Keith
- 20. (c) Jeff Skrentny, some rights reserved (CC BY-NC), uploaded by Jeff Skrentny
- 21. (c) Peter Gorman, some rights reserved (CC BY-NC-SA)
- 22. (c) Mark Kluge, some rights reserved (CC BY-NC-ND), uploaded by Mark Kluge
- 23. (c) Steve Chilton, some rights reserved (CC BY-NC-ND)
- 24. (c) Kingsbrae Garden, some rights reserved (CC BY-NC-SA)
- 25. (c) Rob Curtis, some rights reserved (CC BY-NC-SA), uploaded by Rob Curtis
- 26. (c) myiarchus22, some rights reserved (CC BY-NC)
- 27. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
- 28. (c) dogtooth77, some rights reserved (CC BY-NC-SA)
- 29. (c) Mary Keim, some rights reserved (CC BY-NC-SA)
- 30. (c) Tom Potterfield, some rights reserved (CC BY-NC-SA)
- 31. (c) Doug Greenberg, some rights reserved (CC BY-NC-ND)
- 32. (c) Carol Foil, some rights reserved (CC BY-NC-ND)
- 33. (c) Erik Danielsen, some rights reserved (CC BY-NC), uploaded by Erik Danielsen
- 34. (c) Charles Wohlers, some rights reserved (CC BY-NC-ND)
- 35. (c) Anita, some rights reserved (CC BY-NC)
- 36. (c) Homer Edward Price, some rights reserved (CC BY)
- 37. (c) Jean-Pol GRANDMONT, some rights reserved (CC BY-SA)
- 38. (c) m4duncan, some rights reserved (CC BY-NC)
- 39. no rights reserved
- 40. (c) TCDavis, some rights reserved (CC BY-NC-ND)
- 41. (c) Maggie, some rights reserved (CC BY-NC)
- 42. (c) Cody Hough, some rights reserved (CC BY-NC-SA)
- 43. (c) Hans-Jürgen Becker, some rights reserved (CC BY-ND)
- 44. (c) Cailin O'Connor, some rights reserved (CC BY-NC), uploaded by Cailin O'Connor
- 45. (c) Scott Sauer, some rights reserved (CC BY-NC), uploaded by Scott Sauer
- 46. (c) Fritz Flohr Reynolds, some rights reserved (CC BY-SA)
- 47. (c) aarongunnar, some rights reserved (CC BY), uploaded by aarongunnar
- 48. (c) Brian-Sean Early, some rights reserved (CC BY-NC), uploaded by Brian-Sean Early
- 49. (c) Jed Aplaca, some rights reserved (CC BY-NC), uploaded by Jed Aplaca
- 50. (c) Forest & Kim Starr, some rights reserved (CC BY)
- 51. (c) Suzanne Cadwell, some rights reserved (CC BY-NC)
- 52. (c) Anders Lennver, some rights reserved (CC BY-NC)
Compiled by Kim Pause Tucker,
some rights reserved
(CC BY-SA)
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