Photos:
- 1. (c) Lip Kee Yap, some rights reserved (CC BY-SA)
- 2. (c) Dario Sanches, some rights reserved (CC BY-SA)
- 3. (c) Allan Drewitt, some rights reserved (CC BY)
- 4. (c) Biodiversity Heritage Library, some rights reserved (CC BY-NC-SA)
- 5. (c) Edwin Harvey, some rights reserved (CC BY-NC-SA)
- 6. (c) Dominic Sherony, some rights reserved (CC BY-SA)
- 7. (c) Carmelo López Abad, some rights reserved (CC BY-NC), uploaded by Carmelo López Abad
- 8. (c) Eric Heupel, some rights reserved (CC BY-NC)
- 9. (c) Jamie Chavez, some rights reserved (CC BY-NC)
- 10. (c) Arthur Chapman, some rights reserved (CC BY-NC-SA)
- 11. (c) Justyn Stahl, some rights reserved (CC BY-NC), uploaded by Justyn Stahl
- 12. (c) barloventomagico, some rights reserved (CC BY-NC-ND)
- 13. (c) Felipe Araya Allende, some rights reserved (CC BY-NC-SA)
- 14. (c) Joachim S. Müller, some rights reserved (CC BY-NC-SA)
- 15. (c) Toño Hernández, some rights reserved (CC BY-NC)
- 16. (c) copper, some rights reserved (CC BY-NC), uploaded by copper
- 17. (c) Dan Davison, some rights reserved (CC BY)
- 18. (c) Paul Tavares, some rights reserved (CC BY-NC), uploaded by Paul Tavares
- 19. (c) Yersinia pestis, some rights reserved (CC BY-NC-SA)
- 20. (c) Kent C. Jensen, some rights reserved (CC BY-NC), uploaded by Kent C. Jensen
- 21. (c) Cláudio Dias Timm, some rights reserved (CC BY-NC-SA)
- 22. (c) Steven Mlodinow, some rights reserved (CC BY-NC), uploaded by Steven Mlodinow
- 23. (c) Gustavo Fernando Durán, some rights reserved (CC BY-NC-SA)
- 24. (c) Rick Leche, some rights reserved (CC BY-NC-ND)
- 25. (c) dlbowls, some rights reserved (CC BY-NC), uploaded by dlbowls
- 26. (c) Mark Robinson, some rights reserved (CC BY)
- 27. (c) Nico, some rights reserved (CC BY-NC), uploaded by Nico
- 28. (c) Nicolas Olejnik, some rights reserved (CC BY-NC), uploaded by Nicolas Olejnik
- 29. (c) Derek Keats, some rights reserved (CC BY)
- 30. (c) Greg Lasley, some rights reserved (CC BY-NC), uploaded by Greg Lasley
- 31. (c) GS 1311, some rights reserved (CC BY-NC)
- 32. (c) Roland Kratzer, some rights reserved (CC BY-NC-SA)
- 33. (c) Gustavo Durán, some rights reserved (CC BY-NC-SA)
- 34. (c) Len Blumin, some rights reserved (CC BY)
- 35. (c) Jeff Harding, some rights reserved (CC BY-NC), uploaded by Jeff Harding
- 36. (c) Nick Chill, some rights reserved (CC BY-NC-ND)
- 37. (c) Len Blumin, some rights reserved (CC BY-NC-ND)
- 38. (c) Sergey Pisarevskiy, some rights reserved (CC BY-NC-SA)
- 39. (c) David Schenfeld (busy), some rights reserved (CC BY-NC-ND)
- 40. (c) Cláudio Dias Timm, some rights reserved (CC BY-NC-SA)
- 41. (c) Alastair Rae, some rights reserved (CC BY-SA)
- 42. (c) https://www.flickr.com/photos/viviremco, some rights reserved (CC BY)
- 43. (c) world_lineage, some rights reserved (CC BY-NC), uploaded by world_lineage
- 44. (c) Tan Kok Hui, some rights reserved (CC BY-NC)
- 45. (c) Mike Baird, some rights reserved (CC BY)
- 46. (c) Nick Chill, some rights reserved (CC BY-NC-SA)
- 47. (c) Geoff Coe, some rights reserved (CC BY-NC-ND)
- 48. (c) Linda Tanner, some rights reserved (CC BY)
- 49. (c) Archiverde, some rights reserved (CC BY-NC), uploaded by Archiverde
- 50. (c) Maggie.Smith, some rights reserved (CC BY-NC)
- 51. (c) Riverbanks Outdoor Store, some rights reserved (CC BY)
- 52. (c) Donají Graham, some rights reserved (CC BY-NC), uploaded by Donají Graham
- 53. (c) Bobby McCabe, some rights reserved (CC BY), uploaded by Bobby McCabe
- 54. (c) Nigel, some rights reserved (CC BY)
- 55. (c) Jerry Oldenettel, some rights reserved (CC BY-NC-SA)
- 56. (c) jschweg, some rights reserved (CC BY-NC), uploaded by jschweg
- 57. (c) Ron Knight, some rights reserved (CC BY)
- 58. (c) Rick Leche - Photography, some rights reserved (CC BY-NC-ND)
- 59. (c) Daniel Hinckley, some rights reserved (CC BY-NC-ND)
- 60. (c) Francisco Farriols Sarabia, some rights reserved (CC BY), uploaded by Francisco Farriols Sarabia
- 61. (c) Jorge Schlemmer, some rights reserved (CC BY-NC), uploaded by Jorge Schlemmer
- 62. (c) Tom Benson, some rights reserved (CC BY-NC-ND)
- 63. (c) Leandro Alvarez, some rights reserved (CC BY-NC-SA), uploaded by Leandro Alvarez
- 64. (c) Joe MDO, some rights reserved (CC BY-NC), uploaded by Joe MDO
- 65. (c) rbbrummitt, some rights reserved (CC BY-NC), uploaded by rbbrummitt
- 66. (c) Dave Govoni, some rights reserved (CC BY-NC-SA), uploaded by Dave Govoni
- 67. (c) Hector Bottai, some rights reserved (CC BY-SA)
- 68. (c) Brian Henderson, some rights reserved (CC BY-NC)
- 69. (c) fabiomanfredini, some rights reserved (CC BY-NC), uploaded by fabiomanfredini
- 70. (c) Scott Bowers, some rights reserved (CC BY-NC), uploaded by Scott Bowers
- 71. (c) Kakalotli, some rights reserved (CC BY-NC), uploaded by Kakalotli
- 72. (c) Francesco Veronesi, some rights reserved (CC BY-NC-SA)
- 73. (c) Cristián Pinto, some rights reserved (CC BY-NC-SA)
- 74. (c) Victor W Fazio III, some rights reserved (CC BY-NC), uploaded by Victor W Fazio III
- 75. (c) Mark Peck, some rights reserved (CC BY-NC-SA)
- 76. (c) Bob, some rights reserved (CC BY-NC-ND)
- 77. (c) Cláudio Dias Timm, some rights reserved (CC BY-SA)
- 78. (c) roy pilcher, some rights reserved (CC BY-NC), uploaded by roy pilcher
- 79. (c) Damon Tighe, some rights reserved (CC BY-NC), uploaded by Damon Tighe
- 80. (c) James St. John, some rights reserved (CC BY)
- 81. (c) Leonel Roget, some rights reserved (CC BY), uploaded by Leonel Roget
- 82. (c) Doug Greenberg, some rights reserved (CC BY-NC-ND)
- 83. (c) Paul Cools, some rights reserved (CC BY-NC), uploaded by Paul Cools
- 84. (c) Kenneth Cole Schneider, some rights reserved (CC BY-NC-SA)
- 85. (c) U.S. Fish and Wildlife Service Northeast Region, some rights reserved (CC BY)
- 86. (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal
- 87. (c) Brian Hinds, all rights reserved, uploaded by Brian Hinds
- 88. (c) 116916927065934112165, some rights reserved (CC BY-SA), uploaded by 116916927065934112165
- 89. (c) Owen Strickland, some rights reserved (CC BY-NC), uploaded by Owen Strickland
- 90. (c) Dan Pancamo, some rights reserved (CC BY-SA)
- 91. (c) dominic sherony, some rights reserved (CC BY-SA)
- 92. (c) David Cook Wildlife Photography, some rights reserved (CC BY-NC)
- 93. (c) Leslie Flint, some rights reserved (CC BY-NC), uploaded by Leslie Flint
- 94. (c) maxtdf, some rights reserved (CC BY-NC-ND)
- 95. (c) Bill Carrell, some rights reserved (CC BY-NC-ND), uploaded by Bill Carrell
- 96. (c) Cláudio D. Timm, some rights reserved (CC BY)
- 97. (c) obscurus, some rights reserved (CC BY-NC), uploaded by obscurus
- 98. (c) Zach Baranowski, some rights reserved (CC BY-NC-ND), uploaded by Zach Baranowski
- 99. (c) Julien Renoult, some rights reserved (CC BY), uploaded by Julien Renoult
- 100. (c) Jack Wolf, some rights reserved (CC BY-NC-ND)
- 101. (c) Mike Pennington, some rights reserved (CC BY-SA)
- 102. (c) Carlos Sanchez, some rights reserved (CC BY-NC), uploaded by Carlos Sanchez
- 103. (c) Taran Rampersad, some rights reserved (CC BY-NC-SA)
- 104. (c) jeanmichel_moisant, some rights reserved (CC BY-NC), uploaded by jeanmichel_moisant
- 105. (c) Peter Trimming, some rights reserved (CC BY)
- 106. (c) Minette, some rights reserved (CC BY-NC)
- 107. (c) Christian Artuso, some rights reserved (CC BY-NC-ND), uploaded by Christian Artuso
- 108. (c) Michelle Martin, some rights reserved (CC BY-NC), uploaded by Michelle Martin
- 109. (c) bayucca, some rights reserved (CC BY-NC-SA)
- 110. (c) Eduardo Schmeda, some rights reserved (CC BY)
- 111. (c) Jack Wolf, some rights reserved (CC BY-ND)
- 112. (c) Chris Gladis, some rights reserved (CC BY-ND)
- 113. (c) leithallb, some rights reserved (CC BY-NC), uploaded by leithallb
- 114. (c) Xyko Paludo, some rights reserved (CC BY-NC), uploaded by Xyko Paludo
- 115. (c) Dan A-M, some rights reserved (CC BY-NC), uploaded by Dan A-M
- 116. (c) Flavio Camus, some rights reserved (CC BY-NC)
- 117. (c) Rick elis.simpson, some rights reserved (CC BY-SA)
- 118. (c) guyincognito, some rights reserved (CC BY-NC), uploaded by guyincognito
- 119. (c) Dmitry Mozzherin, some rights reserved (CC BY-NC-SA)
- 120. (c) Shanthanu Bhardwaj, some rights reserved (CC BY-SA)
- 121. (c) Kent Miller, some rights reserved (CC BY-ND), uploaded by Kent Miller
- 122. (c) Wagner Machado Carlos Lemes, some rights reserved (CC BY)
- 123. (c) Tony Morris, some rights reserved (CC BY-NC)
- 124. (c) Alvaro Jaramillo, some rights reserved (CC BY-NC), uploaded by Alvaro Jaramillo
- 125. (c) Jordi Roy Gabarra, some rights reserved (CC BY-NC)
- 126. (c) Roberto Verzo, some rights reserved (CC BY)
- 127. (c) Carlos Urdiales, some rights reserved (CC BY-SA)
- 128. (c) HÃ¥kan Sandin, some rights reserved (CC BY-SA)
- 129. no rights reserved, uploaded by Diego Carús
- 130. (c) Aaron Maizlish, some rights reserved (CC BY-NC)
- 131. (c) Guillermo Debandi, some rights reserved (CC BY), uploaded by Guillermo Debandi
- 132. (c) Amilcar, some rights reserved (CC BY-NC)
- 133. (c) Richard Gibbons, some rights reserved (CC BY-NC)
- 134. (c) Carlos Henrique Luz Nunes de Almeida, some rights reserved (CC BY)
- 135. (c) Vincent A. Vos, some rights reserved (CC BY), uploaded by Vincent A. Vos
- 136. (c) dfaulder, some rights reserved (CC BY)
- 137. (c) Scott Buckel, some rights reserved (CC BY-NC), uploaded by Scott Buckel
- 138. (c) Josh Vandermeulen, some rights reserved (CC BY-NC-ND), uploaded by Josh Vandermeulen
- 139. (c) markus lilje, some rights reserved (CC BY-NC-ND), uploaded by markus lilje
- 140. (c) https://www.flickr.com/photos/jquental, some rights reserved (CC BY)
- 141. (c) Liam Quinn, some rights reserved (CC BY-SA)
- 142. (c) davy, some rights reserved (CC BY-NC), uploaded by davy
- 143. (c) Lip Kee, some rights reserved (CC BY-SA)
- 144. (c) Tor Egil Høgsås, some rights reserved (CC BY)
- 145. (c) David Cook, some rights reserved (CC BY-NC)
- 146. (c) Ronald Navarrete, some rights reserved (CC BY-NC), uploaded by Ronald Navarrete
- 147. (c) Ezequiel Vera, some rights reserved (CC BY-NC), uploaded by Ezequiel Vera
- 148. (c) Douglas Trent, some rights reserved (CC BY-NC), uploaded by Douglas Trent
- 149. (c) Brian Gratwicke, some rights reserved (CC BY)
- 150. (c) Ken Schneider, some rights reserved (CC BY-NC), uploaded by Ken Schneider
- 151. (c) Michael, some rights reserved (CC BY-NC-SA)
- 152. (c) Claudia Komesu, some rights reserved (CC BY-NC), uploaded by Claudia Komesu
- 153. (c) Cláudio Dias Timm, some rights reserved (CC BY-SA)
- 154. (c) Richard Griffin, some rights reserved (CC BY-NC-SA)
- 155. (c) Steve Daniels, some rights reserved (CC BY-NC), uploaded by Steve Daniels
- 156. (c) Alejandro Bayer Tamayo, some rights reserved (CC BY-SA)
- 157. (c) Dick Culbert, some rights reserved (CC BY)
- 158. (c) Nestor Galina, some rights reserved (CC BY)
- 159. (c) Charles Lam, some rights reserved (CC BY-SA)
- 160. (c) peterichman, some rights reserved (CC BY)
- 161. (c) João Vitor Andriola, some rights reserved (CC BY-NC), uploaded by João Vitor Andriola
- 162. (c) Ben Tavener, some rights reserved (CC BY)
- 163. (c) Javier O.R., some rights reserved (CC BY-NC)
- 164. (c) Gustavo Durán, some rights reserved (CC BY-NC-SA)
- 165. (c) Carol Foil, some rights reserved (CC BY-NC-ND)
- 166. (c) Vince Smith, some rights reserved (CC BY-NC-SA)
- 167. (c) Island Conservation, some rights reserved (CC BY-NC-ND)
- 168. (c) Guillermo Vasquez, some rights reserved (CC BY)
- 169. (c) Jimmy Little, some rights reserved (CC BY-NC), uploaded by Jimmy Little
- 170. (c) Arjan Haverkamp, some rights reserved (CC BY)
- 171. (c) Victoria DA., some rights reserved (CC BY-NC-ND)
Compiled by Germán González,
some rights reserved
(CC BY-SA)
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