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314 Beyer, Allison, Kopman, Birds of Louisiana. Duly 



LIST OF THE BIRDS OF LOUISIANA. 



BY GEO. E. BEYER, ANDREW ALLISON, AND HENRY H. KOPMAN. 



Part III. 1 



1. Horned Grebe (Colymbus auritus). A regular winter visitor, not 

 .at all uncommon from November until the end of March. It is usually 

 found in flocks of from five to ten individuals, especially on the lagoons 

 and wide bayous of the southern section of the State. It is not at all 

 shy, but rather inquisitive, often swimming quite up to the hunter's duck 

 blinds. It does not seem to associate with water birds of other species. 



2. Pied-billed Grebe (Podilymbus podiceps). Resident; numbers 

 greatly increase during winter, when one or two may be seen in almost 

 ■every water hole in suitable localities. As a migrant, it arrives in the 

 lower parts of the State about the end of October, while its numbers are 

 greatly diminished about the middle of March. 



3. Loon (Gavia imber). A common winter resident on the Gulf waters; 

 fairly common also on the larger bodies of water far inland. The usual 

 time of arrival is the latter part of October, though it has been observed 

 on Bay St. Louis, Miss., August 11, 1900, and in the same locality during 

 September, 1896. The last are seen about the middle of April. (One 

 was seen at Biloxi, Miss., April 22, 1906.) 



4. Herring Gull (Larus argentatus). Very common from late fall 

 to early spring, and present from about October 15 to April 15. It is 

 found chiefly along the coast and on the lakes of the southern section. 

 It is common on the Mississippi at New Orleans, as are the Ring-billed 

 and Laughing Gulls. This species and the Ring-billed Gull are especially 

 common about oyster canneries, as at Timbalier Bay. 



5. Ring-billed Gull (Larus delawarensis) . Common in practically 

 the same localities and at the same seasons as the preceding. 



6. Laughing Gull (Larus atricilla). Though it appears to be re- 

 stricted as a breeder to the islands along the coast, it ranges over a large 

 part of the State at nearly all seasons, usually following the courses of the 

 rivers. It is rarely if ever observed on the Mississippi at New Orleans 

 during summer, though it may be seen at that season on Lake Pontehar- 

 train, five miles away. There are no nesting colonies on the shores of 

 Lake Pontchartrain, however. 



7. Franklin's Gull (Larus franklinii). A fairly regular, but never 

 common, winter visitor on the western Gulf coast, and about the passes 

 near the mouth of the Mississippi River. 



8. Bonaparte's Gull (Larus Philadelphia). Like the preceding, a 

 regular but not abundant winter visitor. It arrives in September and 



i For Parts I and II, see Volume XXIII, pp. 1-15, 275-282. 



