540 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



RiDGWAY, Robert and Friedmann, Herbert. 



1941-46. The birds of North and Middle America. 

 Bull. U. S. Nat. Mus., 50. "By Robert Ridgway 

 continued by Herbert Friedmann." Parts 9-10. 

 Sprunt, Alexander. 



1950. A list of the birds of the Dry Tortugas Keys, 

 1857-1949. Florida Naturalist 23: 49-60; 73-78; 

 105-111. 



1951a. Complete list of the records of the bridled tern 



for Florida. Florida Naturalist 24: 59. 

 1951b. Some observations on the fall migration at Dry 

 Tortugas, Florida. Auk 68: 218-226. 

 Stevenson, Henry M. 



1950a. Distribution of certain birds in the southeastern 



United States. Amer. Mid. Nat. 43: 605-626. 

 1950b. Seasonal notes on the Tallahassee region. 

 Florida Naturalist 23: 70-71. 

 Sutton, George M. 



1951. Mexican birds. Univ. Oklahoma Press, Norman. 



Weston, Francis M. 



1924-48. The season: Pensacola (Fla.) region. Bird- 

 Lore [and Audubon Mag.], vols. 26-48, 1924-46. 



Also, .Audubon Field Notes, vols. 1-2, 1947 and 1948. 

 Williams, George G. 



1938. Notes on waterbirds of the upper Texas coast. 



Auk 55: 62-70. 

 1941-51. The season: Texas coastal region. Audubon 



Mag., 43-48. Also, Texas coastal region. Audubon 



Field Notes, 1-5. 

 1945. Do birds cross the Gulf of Mexico in spring? 



Auk 62: 98-111. 

 1947. Lowery on trans-Gulf migration. Auk 64: 217- 



238. 



1950. The nature and causes of the 'coastal hiatus.' 

 Wilson Bull. 62: 175-182. 



1951. Birds against the moon. Nature Notes from the 

 Gulf States, 1 (winter 1951): 5-7 and 22. 



