SUMMARY. 191 



RESIDENTS AND MIGRANTS. RARE VISITANTS. 



Podiceps conmtus (Gmel.) . 

 ,, auritus (Linn.). 

 minor (Gmel.). 



Fam. ALGID ^E. 



Fratercula arctica (Linn.) . 

 Alca torda, Linn. 



alle, Linn. 



impennis, Linn. 

 Una troile (Linn.). Uria arra (Pall.). 



grylle (Linn.). 



Fam. PELECANID^E. 



Graculus carbo (Linn.). 



cristatus (Faber). 

 Sola bassana (Linn.). 



Fam. LARID^E. 



Sterna fluviatilis, Naum. Sterna caspia, Pall. 



hirundo, Linn. velox, Riipp. 



dougallii, Mont. hybrida, Pall. 



cantiaca, Gmel. leucoptera, Meisn. 



minuta, Linn. fuliginosaj Gmel. 



fissipes, Linn. stolida^ Linn. 



anglica, Mont. 



Larus minutus, Pall. Larus sabini (Leach). 



ridibundus, Linn. Philadelphia, Ord. 



tridactylus, Linn. rossi, Richards. 



canus, Linn. eburneus, Gmel. 



leucopterus, Faber. atricilla, Linn. 



argentatus, Gmel. ichthyaetus, Pall. 



glaucus, Gmel. melanocephalus, Natt. 



