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LIST OF ILLUSTRATIONS

LIST OF ILLUSTRATIONS TACE Lesser Hlack-backed Gull . •54 Black-headeil Gull (summer) '55 Hlack-headeil Gull (winter) '57 Little C]«ll .... 158 Sabine's Gull .... 159 Ivory-Gull (male) 161 Kiitiwake .... 162 IJIack Tern (summer) 165 White-winj^ed Tern (summer) 167 Caspian Tern (summer) 168 Gull-billed Tern (male in summer) 170 Common Tern (summer) 171 Arctic Tern (female in .summer) . 173 Voun^ Arctic Terns . 174 Roseate Tern (summer) 175 Sandwich Tern (summer) . 177 Sooty Tern .... 178 Little Tern .... 180 Great Skua .... 181 Temminck's Skua 184 Arctic Skua .... 1X5 Arctic .Skua (pale and dark phases) 186 Voung Arctic Skua 187 Long-tailed Skua 188 Razorbills in Breeding-I'lumage . 190 ^'oung Razorbill 193 Great Auk .... 194 Skeleton of Great Auk 195 Guillemot (summer) . 196 Guillemot (winter) 197 Hridled (hiillemot 198 Brimnich's Guillemot 199 lilack Guillemot (winter) 200 Black Guillemot (adult and young ir summer) .... 201 Little Auks or Retches 202 I'uftins ..... 205 Storm-l'etrel (male) . 207 Fork -tailed I'etrel 209 Maileira I'etrel .... 210 Vils<jn's I'etrel .... 211 Kulmar (light phase) . 213 Julniar (dark phase) . 214 (jreat Shearwater 215 Manx Shearwater ■ 217 Little Dusky Shearwater . 219 .Sooty .Shearwater 220 .Sooty .Shearwater 221 Bulwer's I'etrel .... 2Z2 (ireat Crested Grebe (female in summer 1 223 I'oot of Great (irebe . 227 Red-necked Grebe 228 Sclavonian (jrebe 229 Black necked (irebe . 23" Dabchick 233 A I'air of (ireat Northern Divert 23"; Black-throaled Diver . 23«  Red-throated Diver Heron I'urple Heron . (ireat White Heron . Little Egret .Sf[uacco Heron . Night-Herons . Little Bittern (male) . Bittern . ierican Bittern Stork Black Stork (i lossy Ibis -Spoonbill . Whooper .Swan Besvick's .Swans Mule Swan Heads of British .Swans (irey Lag Gander White-fronted Goose . l!ean-(ioose Pink-footed (ioo.se Barnacle (ioo.se Brent Goose Mallard and Wild Duck Gadwall . Teal (drake) Teal (duck) W'igeon (duck and drake) .American W'igeon Pintails (duck and drake) (iarganey (duck and drake) .Shoveller (duck and drake) Sheldrake (male) Ruddy Sheldrake Red -crested Pochard 1 'ochard . White-eyed I'ochartl Scaup- Duck (male and female) Tufted Duck (iolden-eyes (duck and drake) Long-tailed Duck (male) Eiders (male and fem King- Eider (drake) Scoter 'elvet-Scoler Surf-Scoter A I'air of Smews (ioo.sander (male and Merganser (male) N'oung Mergansers Cormorant Shags (iannet (adult male) N'oung (Jannet . I'eregrine Ialroii Hobby (male) . lie) female) PAGK 240 242 246 247 248 249 251 253 255 257 258 259 260 262 266 269 270 271 272 275 276 278 280 281 284 287 289 290 292 294 295 297 300 303 307 309 3'2 3>5 317 320 322 325 327 330 55^ 3i3 334 336 339 341 343 344 348 350 352 353 557