vi CONTENTS. 



Plate Page 



Family ALCID-ffi 362 



Genus FRATERCULA . . 362 



Fratercula arctica. Puffin 45. 364 



Genus ALGA 370 



Alca impennis. Great Ank 40, 41. 371 



torda. Razorbill 42. 375 



alle. Little Auk 45. 380 



- c/rytte. Black Guillemot 45. 383 



troile. Common Guillemot 1 43 44 388 



ImmnicJii. Brunnich's Guillemot / 



Family COLYMBID-E 400 



Genus COLYMBUS 401 



Colymbus glacialis. Great Northern Diver 35. 402 



adamsi. White-billed Diver 405 



arcticus. Black-throated Diver 35. 407 



septentrionalis. Red-throated Diver 35. 412 



Family PKOCELLAKinXE -.. 415 



Genus PUFFINUS 416 



Puffinus major. Great Shearwater 56. 417 



anglorum. Manx Shearwater 56. 420 



obscurus. Dusky Shearwater 56. 425 



griseus. Sooty Shearwater 427 



Genus FIJLMARUS 429 



Fulmarus glacialis. Fulmar Petrel 56. 430 



Genus PROCELLARIA 437 



Procellaria pelagica. Stormy Petrel 56. 438 



leachi. Leach's Fork-tailed Petrel . 56. 443 



Genus OCEANITES 448 



Oceanites wilsoni. Wilson's Petrel 449 



Family PODICIPEDnXE .. 452 



Genus PODICEPS 453 



Podiceps cristatus. Great Crested Grebe 39. 455 



rubricollis. Red-necked Grebe 39. 459 



