PLATES IN BLACK AND WHITE 



xa Fulmars and great shearwater, Rockall facing page 97 



x^ Manx shearwaters off Skokholm gy 



xia Leach's petrel 112 



xi^ Madeiran petrel 112 



xiifl North Atlantic shearwater 113 



xii^ Manx shearwater 1 1 3 



xiiifl Bulwer's petrel 132 



xiii3 Bulwer's petrel, day-old chick 132 



xivfl Deserted young fulmar 133 



xiv3 Deserted young Manx shearwater 133 



xvfl Brown booby 140 



XV Z> Blue-faced boobies 140 



xvifl Display of mated gannets 141 



xviZ> The feeding process in the gannetry 141 



xviia Gannet landing 196 



xvii3 Gannet taking flight 196 



xviiia Gannet with stolen grass 197 



xviii^ Gannet about ten days old 197 



xviiid: Immature gannet about to leave nest 197 



XIX Man-o'-war birds 204 



XX(3 Dark phase of arctic skua 205 



xx^ Light phase of arctic skua 205 



xxifl Light phase arctic skua in flight 208 



xxi3 New-born chicks of arctic skua 208 



xxim Display of great skua 209 



xxii^ Great skua stooping at camera-man 209 



xxiii Laughing gulls 224 



xxivfl Herring-gull at nest 225 



xxiv/> Lesser black-backed gull 225 



XXV Ring-billed gulls 228 



xxvi<2 Immature Iceland gull, winter 229 



xxvi^ Adult Iceland gull, summer plumage 229 



vii 



