516 



BIRDS ON THE NIAGARA FRONTIER 



A. O. U. 



No. 



No. 

 in List. 



39. GAVIA ALBA. 8 



IVORY GULL. 



Mar. 12, 1910. Was shot on Niagara River, is mounted 

 and can be seen in my collection. Exceedingly rare. 



40. RISSA TRIDACTYLA. 9 



KITTIWAKE. 

 Quite common, Migrant; Lake Erie and Niagara River. 



42 LARUS GLAUCUS. 10 



ICE GULL. 

 Rare. Winter visitor, Niagara River. 



43. LARUS LEUCOPTERUS. 11 



ICELAND GULL. 

 Occasional, Mar. 7th, 1912 at foot of Ferry street. 

 James Savage. 



45. LARUS KUMLIENI. 12 



KUMLIENS GULL. 

 Occasional. Seen by James Savage from the Steel Arch 

 Bridge at Niagara Falls, Mar. 231 and 25th, 1912. 



51a. LARUS ARGENTIATUS SMITHSONIANUS. 13 

 AMERICAN HERRING GULL. 

 Common, Migrant and Winter visitor. 



54 LARUS DELAWARENSIS. 14 



RING-BILLED GULL. 

 Migrant. Abundant. 



58. LARUS ATRICILLA. 15 



LAUGHING GULL. 

 Accidental. 



60. LARUS PHILADELPHIA. 16 



BONAPART'S GULL. 

 Quite common. Migrant. 



70. STERNA HIRUNDO. 17 



COMMON TERN. 

 Common. Breeds on small islands in Lake Erie. 



71. STERNA PARADISAEA. 18 



ARCTIC TERN. 

 Accidental. Charles Linden. 



