X OAIALOGTJE OF BEITISn BIRDS, 



Indigenous. fieasonal Visitors. Occasional Visitors. 



54. Anser erj^thropiis, 187. 



55. Cygnus ferus, 188. 



S8. Cygnus olor, 189. 



56. Cygnus minor, 190. 



95. Tadorna vulpanser, 190. 



89. Casarca rutila, 191. 



57. Mareca penelope, 191. 



58. Dafila acuta, 192. 



96. Anas boschas, 193. 



97. Querquedula orecoa, 194. 



59. Pterooyanea circia, 195. 



60. Chaulelasmus strepera, 190. 



98. Spatvila clypeata, 197. 



90. Branta rufina, 198. 



61. Fuligula cristata, 199. 



62. Fuligula marila, 199. 



63. Kyroca ferina, 200. 



91. Nyroca leucophthalmos, 201. 



64. Clangula giaucion, 202. 



92. Clangula histrionica, 203. 



65. Harelda glacialis, 203. 



93. Eniconetta SteUeri, 204. 



99. Somateria mollissima, 205. 



94. Somateria spectabilis, 206. 



66. Oidemia fusca, 206. 



67. Oidemia nigra, 207. 



95. Oidemia perspicillata, 207. 



68. Mergus castor, 208. 



100. Mergus serrator, 209. 



69. MergeUus albeUus, 210. 



70. Colymbus glacialis, 211. 



101. Colymbus arcticus, 211. 



102. Colymbus septentrionalis, 212. 



71. Podiceps griscgena, 213. 



103. Podiceps cornutus, 214. 



104. Podiceps cristatus, 214. 



105. Podiceps auritus, 215. 



106. Podiceps minor, 215. 



96. ? Alca impcnnis, 216. 



72. Aloa torda, 217. 



73. Frateroula arctica, 218. 



74. Uria troile, 219. 



97. Uria Briinnichii, 220. 



107. Uria grylle, 220. 



98. Arctica aUo, 221. 



99. PuiRnus cinereus, 222, 



75. Pufflnus anglorum, 223. 



108. Thalassidroma pclagica, 224. 



