Photos:
- 1. (c) Brian Gratwicke, some rights reserved (CC BY)
- 2. (c) Francesco Veronesi, some rights reserved (CC BY-SA)
- 3. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 4. (c) Alan Harper, some rights reserved (CC BY-NC)
- 5. (c) Frank Vassen, some rights reserved (CC BY)
- 6. (c) Werner Witte, some rights reserved (CC BY-NC)
- 7. (c) AEM, some rights reserved (CC BY-SA)
- 8. (c) seasav, some rights reserved (CC BY-NC-ND), uploaded by seasav
- 9. (c) Lip Kee, some rights reserved (CC BY-SA)
- 10. (c) Rudo JureÄek, some rights reserved (CC BY-NC-SA)
- 11. (c) Paul Cools, some rights reserved (CC BY-NC), uploaded by Paul Cools
- 12. (c) Martin Grimm, some rights reserved (CC BY-NC)
- 13. no rights reserved, uploaded by Scott Loarie
- 14. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 15. (c) Tan Kok Hui, some rights reserved (CC BY-NC)
- 16. (c) Zak Pohlen, some rights reserved (CC BY-NC-SA)
- 17. (c) David Nowell, some rights reserved (CC BY-NC-ND)
- 18. (c) Francess_sparrowhawk.jpg, some rights reserved (CC BY)
- 19. (c) Rob Meades, some rights reserved (CC BY-NC), uploaded by Rob Meades
- 20. (c) Tomio Ueda, some rights reserved (CC BY-NC-SA), uploaded by Tomio Ueda
- 21. (c) Arno & Louise, some rights reserved (CC BY-NC)
- 22. (c) Yvette Biron, some rights reserved (CC BY-SA)
- 23. (c) ronsavage, some rights reserved (CC BY-NC-SA), uploaded by ronsavage
- 24. (c) Drew Avery, some rights reserved (CC BY), uploaded by Drew Avery
- 25. (c) benwalton, some rights reserved (CC BY-NC), uploaded by benwalton
- 26. (c) David Cook, some rights reserved (CC BY-NC)
- 27. (c) tomgrove20, some rights reserved (CC BY-NC)
- 28. (c) Paul Prior, some rights reserved (CC BY), uploaded by Paul Prior
- 29. (c) Cédric de Foucault, some rights reserved (CC BY-NC-SA), uploaded by Cédric de Foucault
- 30. (c) Ian White, some rights reserved (CC BY-ND)
Compiled by Victoria Jackson
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