353 GREAT AUK 
ALCA IMPENNIS L. 
354° LITTLE AUK 
MERGULUS ALLE (L.) 
355 GUILLEMOT 
UR1A TROILE (L.) 
355 bin RINGED GUILLEMOT 
URIA LACRYMANS T. 
356* BRUNNICH’S 
GUILLEMOT 
URIA BRUNNICHII Sab. 
357 BLACK GUILLEMOT 
URIA GRYLLE (L.) 
PELECANID/E. 
358 CORMORANT 
PHALACROCORAX CARBO (L.) 
359 SHAG 
PHALACROCORAX CRISTATUS (F.) 
360 GANNET 
SULA BASSANA (L.) 
LARID>£. 
361 BLACK TERN 
HYDROCHELIDON NIGRA L. 
362* WHITE-WINGED 
BLACK TERN 
HYDROCHELIDON LEUCOPTERA M.&S. 
363* WHISKERED TERN 
HYDROCHELIDON HYBRIDA P. 
364* CASPIAN TERN 
STERNA CASPIA P. 
365 COMMON TERN 
STERNA FLUVIATILIS N. 
366 ARCTIC TERN 
STERNA MACROURA N. 
367 ROSEATE TERN 
STERNA DOUGALLII M. 
368 SANDWICH TERN 
STERNA CANTIACA Gm. 
