PLATES IN BLACK AND WHITE 



xxviifl Immature glaucous gull ' 236 



xxvii^ Immature Bonaparte's gull 236 



xxviii^ Little gull 237 



xxviii^ Chicks of yellow-legged herring-gull 237 



xxixfl Laughing gulls 240 



xxix^ Black-headed gulls 240 



xxxfl Offal-scavenging gulls at fish wharf 241 



xxxb Sabine's gull, winter 241 



xxxc Black-headed gull, winter 241 



xxxia Common gulls, summer 256 



xxxib Eggs of gull-billed tern 256 



XXXII Royal terns over nesting colony 257 



xxxiHfl Little tern 260 



xxxiii3 Black tern, autumn 260 



xxxiva Common terns mating 261 



xxxiv^ Caspian tern 261 



XXXV Noddy 268 



xxxvifl Black skimmer and chick 269 



xxxvi^ Gull-billed tern family 269 



xxxviifl Razorbill chick 272 



xxxvii^ Common guillemot chick 272 



xxxviiifl Black guillemot 273 



xxxviii^ Little auks, winter 273 



xxxix Common guillemots ' 288 



XL Briinnich's guillemots 289 



It should be noted that throughout this book plate numbers in arabic 

 figures refer to Colour Plates, while roman numerals are used for 



Black-and- White Plates 



vm 



