Edited by Edith Belén Jiménez Díaz, some rights reserved (CC BY-SA)
Photo Credits
- 1. (c) Dave Govoni, some rights reserved (CC BY-NC-SA), uploaded by Dave Govoni
- 2. (c) Francesco Veronesi, some rights reserved (CC BY-NC-SA)
- 3. (c) barloventomagico, some rights reserved (CC BY-NC-ND)
- 4. (c) José Antonio Linage Espinosa, some rights reserved (CC BY-NC), uploaded by José Antonio Linage Espinosa
- 5. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 6. (c) Fernando Bautista, some rights reserved (CC BY), uploaded by Fernando Bautista
- 7. (c) Cheryl Harleston López Espino, some rights reserved (CC BY-NC-ND), uploaded by Cheryl Harleston López Espino
- 8. (c) Katja Schulz, some rights reserved (CC BY)
- 9. (c) Amelia Ryan, some rights reserved (CC BY-NC), uploaded by Amelia Ryan
- 10. (c) Dmitry Mozzherin, some rights reserved (CC BY-NC-SA)
- 11. (c) Lip Kee Yap, some rights reserved (CC BY-SA)
- 12. (c) Heather Paul, some rights reserved (CC BY-ND)
- 13. (c) tnewman, some rights reserved (CC BY-NC)
- 14. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 15. (c) Dario Sanches, some rights reserved (CC BY-SA)
- 16. (c) Jeff Nickel, some rights reserved (CC BY-NC-SA)
- 17. (c) 116916927065934112165, some rights reserved (CC BY-SA), uploaded by 116916927065934112165
- 18. (c) Bill Bouton, some rights reserved (CC BY-SA)
- 19. (c) Len Blumin, some rights reserved (CC BY-NC-ND)
- 20. (c) Alan R. Biggs, some rights reserved (CC BY-NC-ND), uploaded by Alan R. Biggs
- 21. (c) Julien Renoult, some rights reserved (CC BY), uploaded by Julien Renoult
- 22. (c) Jack Wolf, some rights reserved (CC BY-NC-ND)
- 23. (c) Nick Chill, some rights reserved (CC BY-NC-ND)
- 24. (c) Juan Jose Montero Rodriguez, some rights reserved (CC BY-NC-SA)
- 25. (c) José Garrido, some rights reserved (CC BY), uploaded by José Garrido
- 26. (c) Federico, some rights reserved (CC BY-NC-ND)
- 27. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 28. (c) Jamie Drake, some rights reserved (CC BY-NC-SA)
- 29. (c) Maggie.Smith, some rights reserved (CC BY-NC)
- 30. (c) Donají Graham, some rights reserved (CC BY-NC), uploaded by Donají Graham
- 31. (c) Bobby McCabe, some rights reserved (CC BY), uploaded by Bobby McCabe
- 32. (c) Doug Greenberg, some rights reserved (CC BY-NC-ND)
- 33. (c) Geoff Coe, some rights reserved (CC BY-NC-ND)
- 34. (c) brennan3909, some rights reserved (CC BY-NC)
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- 36. (c) Wayne, some rights reserved (CC BY-NC)
- 37. (c) Isidro Vila Verde, some rights reserved (CC BY-NC-ND)
- 38. (c) Justina Martelli, some rights reserved (CC BY-NC), uploaded by Justina Martelli
- 39. (c) Rick Leche - Photography, some rights reserved (CC BY-NC-ND)
- 40. (c) Fred Hochstaedter, some rights reserved (CC BY-NC-SA)
- 41. (c) Andrew Reding, some rights reserved (CC BY-NC-ND)
- 42. (c) Alejandro Bayer Tamayo, some rights reserved (CC BY-SA)
- 43. (c) Rosabel Miro, some rights reserved (CC BY-NC), uploaded by Rosabel Miro
- 44. (c) jschweg, some rights reserved (CC BY-NC), uploaded by jschweg
- 45. (c) Francisco Farriols Sarabia, some rights reserved (CC BY), uploaded by Francisco Farriols Sarabia
- 46. (c) Denilson Eliu Ordoñez Moreno, some rights reserved (CC BY-NC), uploaded by Denilson Eliu Ordoñez Moreno
- 47. (c) Cláudio Dias Timm, some rights reserved (CC BY-NC-SA)
- 48. (c) MiltonRuiz, some rights reserved (CC BY-NC), uploaded by MiltonRuiz
- 49. (c) Dominik Hofer, some rights reserved (CC BY-NC-SA)
- 50. (c) Carol Foil, some rights reserved (CC BY-NC-ND)
- 51. (c) platypus, some rights reserved (CC BY-NC)
- 52. (c) Dan Pancamo, some rights reserved (CC BY-SA)
- 53. (c) Alexis López Hernández, some rights reserved (CC BY), uploaded by Alexis López Hernández
- 54. (c) Carlos Palomera, some rights reserved (CC BY-NC-ND)
- 55. (c) Bill Bouton, some rights reserved (CC BY-NC)
- 56. (c) bathyporeia, some rights reserved (CC BY-NC-ND)
- 57. (c) David Cook, some rights reserved (CC BY-NC)
- 58. (c) Henry T. McLin, some rights reserved (CC BY-NC-ND)
- 59. (c) dloarie, some rights reserved (CC BY), uploaded by dloarie
- 60. no rights reserved, uploaded by Diego Carús
- 61. (c) philippe, some rights reserved (CC BY-NC-ND)
- 62. (c) Andy Jones, some rights reserved (CC BY-NC-SA)
- 63. (c) Richard Gibbons, some rights reserved (CC BY-NC)
- 64. (c) Manuel Grosselet, some rights reserved (CC BY-NC), uploaded by Manuel Grosselet
- 65. (c) Richard Griffin, some rights reserved (CC BY-NC-SA)
- 66. (c) Juan Cruzado Cortés, some rights reserved (CC BY-SA), uploaded by Juan Cruzado Cortés
- 67. (c) Wagner Machado Carlos Lemes, some rights reserved (CC BY)
- 68. (c) Michael, some rights reserved (CC BY-NC-SA)
- 69. (c) TexasEagle, some rights reserved (CC BY-NC)
- 70. (c) Ken Schneider, some rights reserved (CC BY-NC), uploaded by Ken Schneider
- 71. (c) Leslie Flint, some rights reserved (CC BY-NC), uploaded by Leslie Flint
- 72. (c) Alastair Rae, some rights reserved (CC BY-SA)
- 73. (c) angel_castillo_birdingtours, some rights reserved (CC BY-NC), uploaded by angel_castillo_birdingtours
- 74. (c) Scott Buckel, some rights reserved (CC BY-NC), uploaded by Scott Buckel
