CONTENTS. 



PAGE 



Family IbididcE : Ibises 254 



Ardeida: Herons 259 



Gruida: Cranes 276 



Rallida : Rails and their Allies . . 279 



Anatida : Swans, Geese, and Ducks . 296 



Sulida: Gannets 334 



Pelecanidce: Pelicans 337 



Phalacrocoracida : Cormorants . . . -339 



Tacky petidce : Frigates 341 



Laridce : Jaegers, Gulls, Terns, Skimmers, 343 



Procellariida> : Petrels 33o 



ColymbidcE : Loons 388 



Podicipedidcz : Grebes 391 



Alcidce: Auks 394 



