274 



Order I. PYGOPODES. 

 A. O. U. Family Podicipidoe. 



3. Horned Grebe Colymbus auritus. 



Family Gaviidcs. 



7. Loon Gavia imber. 



Family Alcidce. 



27. Black Guillemot Cepphus grylle. 



30. Murre Uria troile. 



30a. California Murre Uria troile californica. 



Order II. LOXGIPEXXES. 

 Family Laridxe. 



41. Red-legged Kittiwake Rissa brevirostris. 



47. Great Black-backed Gull Larus marinus. 



49. Western Gull Larus occidentalis. 



51. Herring Gull Larus argentatus. 



51a. American Herring Gull Larus argentatus americanus. 



54. Ring-billed Gull Larus delawarensis. 



58. Laughing Gull Larus atricilla. 



59. Franklin Gull Larus franklini. 



60. Little Gull Larus minutus. 



70. Common Tern Sterna hirundo. 



74. Least Tern Sterna antillaruui. 



75. Sooty Tern Sterna fuliginosa. 



77. Black Tern Hydrochelidon nigra surinamensis. 



Family Rhynchopidce. 

 80. Black Skimmer .Rhynchops nigra. 



Or ckr IV. STEGAXOPODES. 



Family Phalacrocoracidoe . 

 122. Brant Cormorant Phalacrocorax penicillatus. 



Order VII. HERODIOXES. 

 Family Ardeidce. 

 191 . Least Bittern Ardetta exilis. 



196. American Egret Herodias egretta . 



197. S.io vv Heron Egretta candidissin.a. 



