328 LIST OF THE HIKDS OF KA>TKi;N NOKTII AMKKIOA. 



\. o. u. 

 NO. 



27 (17) LARUS MARINUS. LINN. Great Black-backed (tall. 



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

 Florida. 



28 (."(>) LARUS UFFINUS. RKIMI. Siberian Gull. 



Old world species; recorded 1'roin ( Jreriiland. 



29 (")!) LARUS ARGENTATUS. Bui'xx. Herring Gull. 



European species; accidental on Atlantic coast of North America. 



30 ('>l.) Larus argentatus smitksonianua. COCKS. American Herring Gull. North 



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

 our bays and coast; breeds from Maine northward. 



31 (/>4) LARUS DELAWARENSIS. OIJD. Ring=billed Gull. 



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



32 (;>\\) LARUS CANUS. LINX. Mew Gull. 



European species recorded from Labrador (one record). 



33 (58) LARUS ATRICILLA. Lixx. Laughing Gull. 



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

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

 South America. 



34 (.V.I) LARUS FRANKLIN1I. S\v. AXI> KICII. Franklin's Gull. 



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

 coast. 



35 (<;<)) LARUS PHILADELPHIA. (Om>.) Bonaparte's Gull. 



North America; generally breeds north of United States. 



36 (f,<),,) LARUS MINUTUS. PALI.. Little Gull. 



European species ; only once taken on our coast. 



GKXI-S RHODOSTETHIA. MA;IL. 



37 (T.l) RHODOSTETHIA ROSEA. (MACGIL.) Ross's Gull. 



Arctic species; recorded from Alaska and Greenland. 



GEXIS XEMA. LEACH. 



38 (C2) XEMA SABINII. (SAB.) Sabine's Gull. 



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



Subfamily STERNIN/E. Terns. 



GENUS QELOCHELIDON. BKI.IM 



39 (I 1 ,;',) GELOCHELIDON NILOTICA. (IlAssK.i.o.) (iull-billed Tern. 



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

 winter, south to Hra/il. 



GEXIS STERNA. LINX. 

 Srr.M.xrs THALASSEUS. HOIK. 



40 (T.l) STERNA CASPIA. I'M, IAS. Caspian Tern. 



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

 coast ; also 1'aeilic coast and interior 



