LIST OF ILLUSTRATIONS 



BLACK-BACKED GULL AND COMMON TERN . Faces page 15 



RUFFS Starring 63 



GUILLEMOT AND RAZORBILL .... 125 



GREAT NORTHERN DIVER 153 



TUFTED DUCK 187 



THE STORMY PETREL 243 



THE CHOUGH 261 



MIGRATION TIME (on the Friskney foreshore) . 281 



