i^'2S LIST OF THK BIKIXS OF FASTKIIN NORTH AMKKIOA. 



A. <). U. 

 NO. 



27 (47) LARUS MARINUS. Linn. Great Black-backed ttull. 



Nortli Atlantic Ocean ; south in winter to Middle States ; accidental in 

 Florida. 



28 (50) LARUS UFFINUS. Kkimi. Siberian Gull. 



Old world species; recorded from (Ireenland, 



29 (51) LARUS ARGENTATUS. Biiuxx. Herring Gull. 



European species ; accidental on Atlantic coast of North America. 



30 (51a) Lams argentatus smithsonianus. Couks. American Herring Gull. North 



America ; generally south to Cuba in winter ; the common species of 



our ba^'s and coast; breeds from Maine northward. 

 LARUS DELAWARENSIS. Oud. Ring=billed Gull. 

 General, North America ; south to Gulf of Mexico in winter. 

 LARUS CANUS. Linn. Mew Gull. 

 European s[)ecies recorded from Labrador (one record). 

 LARUS ATRICILLA. Linn. Laughing Gull. 

 Atlantic coast of United States ; north in summer to Maine and Nova 



Scotia ; in Avinter, southern United States, West Indies, and northern 



South America. 



34 (59) LARUS FRANKLlNll. Sw. and IJicii. Franklin s Gull. 



Not common east of the Mississippi River ; not found on the Atlantic 

 coast. 



35 (GO) LARUS PHILADELPHIA. (Ord.) Bonaparte's Gull. 



North America ; generally breeds north of United States. 



36 (00a) LARUS MINUTUS. Pall. Little Gull. 



European species ; only once taken on our coast. 



Genus RHODOSTETHIA. Macgil. 



37 (<;i) RHODOSTETHIA ROSEA. (Macgil.) Ross's Gull. 



Arctic species ; recorded from Alaska and Greenland. 



Geni;s XEMA. Leach. 



38 (62) XEMA SABlNll. (yAU.) Sabine's Gull. 



Arctic regions ; soutli in winter to Long Island ; rare. 



Subfamily STERNIN/E. Terns. 



Genus QELOCHELIDON. Bijeiim. 



39 (6.3) GELOCHELIDON NILOTICA. (Hasselq.) GulUbilled Tern. 



Througliout North America; summer, north to southern New England, 

 winter, south to Brazil. 



Genus STERNA. Linn. 

 Subgenus THALASSEUS. Boie. 



40 (64) STERNA CASPIA. Pallas. Caspian Tern. 



Whole of North America; cosmopolitan species; breeds on middle Atlantic 

 coast ; also Pacific coast and interior. 



