X CATALOGUE OF BRITISn BIRDS. 



Indigenous. Seasonal Visitors. Occasional Visitors. 



54. Auser erythropiis, 187. 



55. Cygnus ferus, 188. 



88. CygmiB olor, 189. 



56. Cygnus minor, 190. 

 95. Tadorna vulpanser, 190. 



89. Casarca rutila, 191. 



57. Mareca penelope, 191. 



58. Dafila acuta, 192. 

 90. Anas boschas, 193. 



97. Querquedula crccca, 194. 



59. Pterocyanea circia, 195. 



60. Chaulelasmus strcpera, 196. 



98. Spatula clj'peata, 197. 



90. Branta rufina, 198. 



61. Fuligula cristata, 199. 



62. Fuligula marila, 199. 



63. Nyroca ferina, 200. 



91. Nyroca leucophthalmos, 201. 



64. Clangida glaucion, 202. 



92. Clangula histrionica, 203. 



65. Harelda glacialis, 203. 



93. Eniconetta Stelleri, 204. 



99. Somatcria 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. Mergellus albeUus, 210. 



70. Colymbus glacialis, 211. 



101. Colymbus arcticus, 211. 



102. Colymbus septentrionalis, 212. 



71. Podiceps grisegena, 213. 



103. Podiceps cornutus, 214. 



104. Podiceps cristatus, 214. 



105. Podiceps aiiritus, 215. 



106. Podiceps minor, 215. 



96. ? Alca impennis, 216. 



72. Alca torda, 217. 



73. Fratercula arctica, 218. 



74. Una troile, 219. 



97. Uria Briinnichii, 220. 



107. Uria giyUe, 220. 



98. Arctica aUc, 221. 



99. Puffinus cinereus, 222. 



75. Puffinus anglorum, 223. 

 lOS. Thalassidroma pclagica, 224. 



