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Photo Credits
- 1. (c) dogtooth77, some rights reserved (CC BY-NC-SA)
- 2. (c) Wolfgang Siebeneich, some rights reserved (CC BY-NC), uploaded by Wolfgang Siebeneich
- 3. (c) Mark Kluge, some rights reserved (CC BY-NC-ND), uploaded by Mark Kluge
- 4. (c) Cosmic Cat, some rights reserved (CC BY-NC), uploaded by Cosmic Cat
- 5. (c) Alan Weakley, some rights reserved (CC BY-NC), uploaded by Alan Weakley
- 6. (c) Bob MacInnes, some rights reserved (CC BY)
- 7. (c) greersferry, some rights reserved (CC BY-NC)
- 8. (c) Fluffymuppet, some rights reserved (CC BY-NC)
- 9. (c) Sara Rall, some rights reserved (CC BY-NC), uploaded by Sara Rall
- 10. (c) Anh Do, some rights reserved (CC BY-NC), uploaded by Anh Do
- 11. (c) eknuth, some rights reserved (CC BY-NC), uploaded by eknuth
- 12. (c) Mary PK Burns, some rights reserved (CC BY-NC)
- 13. (c) Jean-Pol GRANDMONT, some rights reserved (CC BY)
- 14. (c) Eli Sagor, some rights reserved (CC BY-NC)
- 15. (c) Maggie, some rights reserved (CC BY-NC)
- 16. (c) Dan Mullen, some rights reserved (CC BY-NC-ND)
- 17. (c) Owen Strickland, some rights reserved (CC BY-NC), uploaded by Owen Strickland
- 18. no rights reserved, uploaded by Robert Creech
- 19. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 20. (c) carolr, all rights reserved, uploaded by carolr
- 21. (c) Mary Keim, some rights reserved (CC BY-NC-SA)
- 22. (c) Lois, some rights reserved (CC BY-NC), uploaded by Lois
- 23. (c) Laura Clark, some rights reserved (CC BY), uploaded by Laura Clark
- 24. (c) charley, some rights reserved (CC BY-NC), uploaded by charley
- 25. (c) sandy richard, some rights reserved (CC BY-NC)
- 26. no rights reserved, uploaded by Christopher Warneke
- 27. (c) Jean-Pol GRANDMONT, some rights reserved (CC BY-SA)
- 28. (c) Román Castañeda Vázquez, some rights reserved (CC BY-NC-SA), uploaded by Román Castañeda Vázquez
- 29. (c) mari_y, some rights reserved (CC BY-NC)
- 30. (c) Vail Ryan, some rights reserved (CC BY-NC), uploaded by Vail Ryan
- 31. (c) Krzysztof Ziarnek, Kenraiz, some rights reserved (CC BY-SA)
- 32. (c) Bruce Kirchoff, some rights reserved (CC BY)
- 33. (c) Michael Gras, M.Ed., some rights reserved (CC BY)
- 34. (c) Homer Edward Price, some rights reserved (CC BY)
- 35. (c) Tony Rodd, some rights reserved (CC BY-NC-SA)
- 36. (c) Roger Birkhead, some rights reserved (CC BY-NC-ND), uploaded by Roger Birkhead
- 37. (c) Leonora Enking, some rights reserved (CC BY-SA)
- 38. (c) Erik Danielsen, some rights reserved (CC BY-NC), uploaded by Erik Danielsen
- 39. (c) Bob Gutowski, some rights reserved (CC BY-NC-SA)
- 40. (c) Dwayne Estes, some rights reserved (CC BY-NC), uploaded by Dwayne Estes
- 41. (c) Matt Bertone, some rights reserved (CC BY-NC), uploaded by Matt Bertone
- 42. (c) Adrian Stewart, some rights reserved (CC BY-NC), uploaded by Adrian Stewart
- 43. (c) Erutuon, some rights reserved (CC BY-SA)
- 44. (c) Patrick Coin, some rights reserved (CC BY-NC-SA)
