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1. Abeillia ‎(1 member)
2. Abroscopus ‎(3 members)
3. Aburria ‎(1 member)
4. Acanthagenys ‎(1 member)
5. Acanthidops ‎(1 member)
6. Acanthis ‎(2 members)
7. Acanthisitta ‎(1 member)
8. Acanthisittidae ‎(2 members)
9. Acanthiza ‎(13 members)
10. Acanthizidae ‎(14 members)
11. Acanthoptila ‎(1 member)
12. Acanthorhynchus ‎(2 members)
13. Acanthornis ‎(1 member)
14. Accipiter ‎(47 members)
15. Accipitridae ‎(73 members)
16. Accipitriformes ‎(4 members)
17. Aceros ‎(5 members)
18. Achaetops ‎(1 member)
19. Acridotheres ‎(10 members)
20. Acritillas ‎(1 member)
21. Acrobatornis ‎(1 member)
22. Acrocephalidae ‎(6 members)
23. Acrocephalus ‎(36 members)
24. Acropternis ‎(1 member)
25. Acryllium ‎(1 member)
26. Actenoides ‎(6 members)
27. Actinodura ‎(7 members)
28. Actitis ‎(2 members)
29. Actophilornis ‎(2 members)
30. Adelomyia ‎(1 member)
31. Aechmophorus ‎(2 members)
32. Aechmorhynchus ‎(1 member)
33. Aegithalidae ‎(4 members)
34. Aegithalos ‎(6 members)
35. Aegithina ‎(4 members)
36. Aegithinidae ‎(1 member)
37. Aegolius ‎(4 members)
38. Aegotheles ‎(9 members)
39. Aegothelidae ‎(2 members)
40. Aegypius ‎(1 member)
41. Aenigmatolimnas ‎(1 member)
42. Aepyornis ‎(1 member)
43. Aepypodius ‎(2 members)
44. Aerodramus ‎(27 members)
45. Aeronautes ‎(3 members)
46. Aethia ‎(4 members)
47. Aethopyga ‎(18 members)
48. Africa ‎(60 members)
49. Afropavo ‎(1 member)
50. Afrotis ‎(2 members)
51. Agamia ‎(1 member)
52. Agapornis ‎(9 members)
53. Agelaioides ‎(1 member)
54. Agelaius ‎(5 members)
55. Agelastes ‎(2 members)
56. Agelasticus ‎(3 members)
57. Aglaeactis ‎(4 members)
58. Aglaiocercus ‎(3 members)
59. Agriornis ‎(5 members)
60. Agropsar ‎(2 members)
61. Ailuroedus ‎(3 members)
62. Aimophila ‎(3 members)
63. Aix ‎(2 members)
64. Ajaia ‎(1 member)
65. Alabama ‎(1 member)
66. Alaemon ‎(2 members)
67. Alaska ‎(2 members)
68. Alauda ‎(4 members)
69. Alaudidae ‎(21 members)
70. Albania ‎(2 members)
71. Alberta ‎(9 members)
72. Alca ‎(1 member)
73. Alcedinidae ‎(20 members)
74. Alcedo ‎(15 members)
75. Alcidae ‎(11 members)
76. Alcippe ‎(23 members)
77. Aleadryas ‎(1 member)
78. Alectoris ‎(7 members)
79. Alectroenas ‎(4 members)
80. Alectrurus ‎(2 members)
81. Alectura ‎(1 member)
82. Alethe ‎(1 member)
83. Algarve ‎(3 members)
84. Alipiopsitta ‎(1 member)
85. Alisterus ‎(3 members)
86. Alle ‎(1 member)
87. Allenia ‎(1 member)
88. Alophoixus ‎(7 members)
89. Alopochelidon ‎(1 member)
90. Alopochen ‎(1 member)
91. Amadina ‎(2 members)
92. Amalocichla ‎(2 members)
93. Amandava ‎(3 members)
94. Amaurocichla ‎(1 member)
95. Amaurolimnas ‎(1 member)
96. Amaurornis ‎(9 members)
97. Amaurospiza ‎(3 members)
98. Amazilia ‎(28 members)
99. Amazona ‎(31 members)
100. Amazonetta ‎(1 member)
101. Amblycercus ‎(1 member)
102. Amblyornis ‎(4 members)
103. Amblyospiza ‎(1 member)
104. Amblyramphus ‎(1 member)
105. Ammodramus ‎(9 members)
106. Ammomanes ‎(3 members)
107. Ammomanopsis ‎(1 member)
108. Ammoperdix ‎(2 members)
109. Ampeliceps ‎(1 member)
110. Ampelioides ‎(1 member)
111. Ampelion ‎(2 members)
112. Amphilais ‎(1 member)
113. Amphispiza ‎(3 members)
114. Amytornis ‎(10 members)
115. Anabacerthia ‎(3 members)
116. Anabathmis ‎(3 members)
117. Anabazenops ‎(2 members)
118. Anairetes ‎(8 members)
119. Anaplectes ‎(1 member)
120. Anarhynchus ‎(1 member)
121. Anas ‎(45 members)
122. Anastomus ‎(2 members)
123. Anatidae ‎(52 members)
124. Ancistrops ‎(1 member)
125. Andigena ‎(4 members)
126. Andorra ‎(1 member)
127. Androdon ‎(1 member)
128. Andropadus ‎(1 member)
129. Androphobus ‎(1 member)
130. Anglesey ‎(3 members)
131. Anhima ‎(1 member)
132. Anhimidae ‎(2 members)
133. Anhinga ‎(4 members)
134. Anhingidae ‎(1 member)
135. Anisognathus ‎(5 members)
136. Anodorhynchus ‎(3 members)
137. Anomalospiza ‎(1 member)
138. Anopetia ‎(1 member)
139. Anorrhinus ‎(3 members)
140. Anous ‎(3 members)
141. Anser ‎(8 members)
142. Anseranas ‎(1 member)
143. Anseriformes ‎(2 members)
144. Anthipes ‎(2 members)
145. Anthobaphes ‎(1 member)
146. Anthocephala ‎(1 member)
147. Anthochaera ‎(5 members)
148. Anthornis ‎(1 member)
149. Anthoscopus ‎(6 members)
150. Anthracoceros ‎(5 members)
151. Anthracothorax ‎(7 members)
152. Anthreptes ‎(13 members)
153. Anthropoides ‎(2 members)
154. Anthus ‎(45 members)
155. Antilophia ‎(2 members)
156. Antrostomus ‎(11 members)
157. Anumbius ‎(1 member)
158. Anurolimnas ‎(3 members)
159. Anurophasis ‎(1 member)
160. Apalis ‎(21 members)
161. Apaloderma ‎(3 members)
162. Apalopteron ‎(1 member)
163. Aphanotriccus ‎(2 members)
164. Aphantochroa ‎(1 member)
165. Aphelocephala ‎(3 members)
166. Aphelocoma ‎(6 members)
167. Aphrastura ‎(2 members)
168. Aphriza ‎(1 member)
169. Aphrodroma ‎(1 member)
170. Aplonis ‎(24 members)
171. Apodidae ‎(19 members)
172. Apodiformes ‎(3 members)
173. Aprosmictus ‎(2 members)
174. Aptenodytes ‎(2 members)
175. Apterygidae ‎(1 member)
176. Apteryx ‎(5 members)
177. Apus ‎(19 members)
178. Aquila ‎(11 members)
179. Ara ‎(9 members)
180. Arachnothera ‎(13 members)
181. Aramidae ‎(1 member)
182. Aramides ‎(7 members)
183. Aramidopsis ‎(1 member)
184. Aramus ‎(1 member)
185. Aratinga ‎(20 members)
186. Arborophila ‎(20 members)
187. Arcanator ‎(1 member)
188. Archboldia ‎(1 member)
189. Archilochus ‎(2 members)
190. Ardea ‎(11 members)
191. Ardeidae ‎(20 members)
192. Ardeola ‎(6 members)
193. Ardeotis ‎(4 members)
194. Arenaria ‎(2 members)
195. Argentina ‎(11 members)
196. Argusianus ‎(1 member)
197. Argya ‎(11 members)
198. Arizelocichla ‎(6 members)
199. Arizona ‎(16 members)
200. Armenia ‎(2 members)
201. Arremon ‎(19 members)
202. Arremonops ‎(4 members)
203. Arses ‎(4 members)
204. Artamella ‎(1 member)
205. Artamidae ‎(1 member)
206. Artamus ‎(11 members)
207. Artisornis ‎(2 members)
208. Artwork Only ‎(53 members)
209. Arundinicola ‎(1 member)
210. Asarcornis ‎(1 member)
211. Ashbyia ‎(1 member)
212. Asia ‎(32 members)
213. Asio ‎(6 members)
214. Aspatha ‎(1 member)
215. Asthenes ‎(27 members)
216. Astrapia ‎(5 members)
217. Atalotriccus ‎(1 member)
218. Atelornis ‎(2 members)
219. Athene ‎(3 members)
220. Atimastillas ‎(1 member)
221. Atlantisia ‎(1 member)
222. Atlapetes ‎(29 members)
223. Atrichornis ‎(2 members)
224. Atrichornithidae ‎(1 member)
225. Attagis ‎(2 members)
226. Atthis ‎(2 members)
227. Atticora ‎(2 members)
228. Attila ‎(7 members)
229. Augastes ‎(3 members)
230. Aulacorhynchus ‎(6 members)
231. Auriparus ‎(1 member)
232. Australia ‎(28 members)
233. Austria ‎(5 members)
234. Automolus ‎(9 members)
235. Aviceda ‎(5 members)
236. Avocettula ‎(1 member)
237. Aythya ‎(12 members)
238. Babax ‎(3 members)
239. Baeolophus ‎(5 members)
240. Baeopogon ‎(2 members)
241. Baillonius ‎(1 member)
242. Balaeniceps ‎(1 member)
243. Balaenicipitidae ‎(1 member)
244. Balearic Islands ‎(5 members)
245. Balearica ‎(2 members)
246. Bambusicola ‎(2 members)
247. Bangsia ‎(5 members)
248. Barbados ‎(1 member)
249. Barnardius ‎(1 member)
250. Bartramia ‎(1 member)

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