CONTENTS xiii 



PAGE 



LITTLE TERN. Sterna minuta . . . . . 320 



Caspian Tern. Sterna caspia ...... 323 



Gull-billed Tern. Sterna anglica . . . . . 323 



S \NDWICH TERN. Sterna cantiaca ..... 322 



Sooty Tern. Sterna fuliginosa . . . . . 823 



Scopoli's Sooty Tern. Sterna anccstlieta ..... 323 



Whiskered Tern. Hydroclielidon liybrida . . . . 323 



White-winged Black Tern. Hydroclielidon leucoptera . . . 323 



Black Tern. Hydroclielidon nigra . . . . . . 323 



Noddy. Anoiis stolidus ....... 323 



Ivory Gull. Pagopliila eburnea . . . . . 329 



KITTIWAKE. Eissa tridactyla ...... 323 



Glaucous Gull. Larus glaucus . . . . . . 329 



Iceland Gull. Larus leucopterus ...... 329 



HERRING-GULL. Larus argent at us . . . . . . 324 



LESSER BLACK-BACKED GULL. Larus fuscus .... 325 



COMMON GULL. Larus canus . . . . . . . 326 



GREAT BLACK-BACKED GULL. Larus marinus .... 327 



Great Black-headed Gull. Larus ichthyactus . . . . 330 



BLACK-HEADED GULL. Larus ridibundus .... 328 



Little Gull. Larus mim/tus . . . . . . 330 



SABINE'S GULL. Xema sabinii ...... 330 



COMMON SKUA. Stercorarius catarrhactes . . . . . 330 



Pomatorhine Skua. Stercorarius pomatorliin us . . . . 333 



RICHARDSON'S SKUA. Stercorarius crepidatus . . . 333 



Buffon's Skua. Stercorarius parasiticus ..... 333 



Order TUBINARES. 



STORMY PETREL. Procellaria pelagica . . . . 333 



LEACH'S PETREL. Procellaria leucorrlioa .... 335 



Wilson's Petrel. Oceanites oceanicus . . . . . 336 



MANX SHEARWATER. Puffinus angloruin ..... 336 



Sooty Shearwater. Puffinus griseus . . . . . 337 



Greater Shearwater. Puffinus major ..... 337 



Dusky Shearwater. Puffinus obsrun/fi . . . . 337 



FULMAR. Fulmarus glacialis ...... 337 



Capped Petrel. (Estrelata hccsitata . . . . . 339 



Bulwer's Petrel. Bulweria columbina ..... 339 



Order PYGOPODES. 



GREAT NORTHERN DIVER. Colymbus glacialis , . . . 340 



BLACK-THROATED DIVER. Colymbus arctic us .... 341 



RED-THROATED DIVER. Colymbus septentrionalis . . . 342 



GREAT CRESTED GREBE. Podiceps cristatim .... 342 



Ked-necked Grebe. Podiccpa nrim-njcna . . . . 345 



