CONTENTS ' liii 



PAGE 



LITTLE TERN. Sterna minuta . . . . . 820 



Caspian Tern. Sterna caspia , ... 823 



Gull-billed Tern. Sterna anglica . . . . . 823 



SANDWICH TERN. Sterna cantiaca . . . . .822 



Sooty Tern. Sterna fuliginosa . . . . , . 823 



Scopoli's Sooty Tern. Sterna ancestheta ..... 823 



Whiskered Tern. Hydrochelidon hybrida ... . 323 



White- winged Black Tern. Hydrochelidon leucoptera . , . 323 



Black Tern. Hydrochelidon nigra . . . . . 823 



Noddy. Anoii* stolidus ....... 823 



Ivory Gull. Pagophila eburnea . . . . f b-2b 



KITTIWAKE. Bissa tridactyla ...... 823 



Glaucous Gull. Larus glaucus . . . . 829 



Iceland Gull. Larus leucopterus ...... 829 



HERRING-GULL. Larus argentatus . . . . . 824 



LESSER BLACK-BACKED GULL. Larus fuscus .... 825 



COMMON GULL. Larus canua , . . . . . 826 



GREAT BLACK-BACKED GULL. Larus marinus .... 827 



Great Black-headed Gull. Larus ichthyaetus . . . 830 



BLACK-HEADED GULL. Larus ridibundus . . . 328 



Little Gull. Larus minutus . . . . . , 830 



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



COMMON SKUA. Stercorarius catarrhacten . . . 830 



Pomatorhine Skua. Stercorarius pomatorhinus .... 333 



RICHARDSON'S SKUA. Stercorarius crepidatus . . , . 883 



Buffon's Skua. Stercorarius parasiticus ..... 833 



Order TUBINAEES. 



STORMY PETREL. Procellaria pelagica . . . . 833 



LEACH'S PETREL. 'Procellaria, leucorrhoa . 835 



Wilson's Petrel. Oceanites oceanicus . , . . 836 



MANX SHEARWATER. Puffinua anglorum ..... 836 



Sooty Shearwater. Puffinus griseus . . . . . . 837 



Greater Shearwater. Puffinus major ..... 337 



Dusky Shearwater. Puffinus obscurus . . . 837 



FULMAR. Fulmarus glacialis .,.,. 837 

 Capped Petrel. CEstrelata hcesitata .... .839 



Bulwer's Petrel. Bulweria columbina . 839 



Order PYGOPODES. 



GREAT NORTHERN DIVER. Colymbus glacialis . . . 840 



BLACK-THROATED DIVER. Colymbus arcticus . . . .841 



RED-THROATED DIVER. Colymbus septentrionalia , ... 842 



GREAT CRESTED GREBE Podiceps cristatus . . . .842 



Red-necked Grebe. Podiceps gri&eigena . . . . 845 



