294 K.OPMAN, Warbler Migration in La. and Miss. Th"/ 4 



8. Yellow Warbler. — There is undoubtedly a very restricted 

 spring movement of this species, earlier than that which the 

 majority of our records show. Dates of arrival as early as April 

 i are rare, April 6, as Professor Cooke shows, being the average 

 date when the first bird has been seen. However, in 1904, in the 

 course of a twenty mile trip, March 30, I came across a single 

 Yellow Warbler. Passing the same way the first of April, I found 

 the bird still there. Ordinarily, one thinks to have done well in 

 seeing this species at New Orleans or anywhere in that neighbor- 

 hood, by April 3 or 4. 1 



9. Black-throated Green Warbler. — Professor Cooke is 

 inclined to think that a specimen of this bird taken at Beauvoir, 

 Miss., July 30, 1897, was an individual that had gone astray, and 

 all the evidence of the fall migration of the species elsewhere sup- 

 ports his view. I am inclined to think, however, that parallel 

 cases could be found, for while I positively recorded but one indi- 

 vidual on the date mentioned, shooting that bird, which was an 

 immature male, I saw several other birds that seemed to be of the 

 same species. Furthermore, about July 23, 1896, in Madison 

 Parish, northeastern Louisiana, I saw some birds that I feel well 

 assured were Black-throated Green Warblers, but circumstances 

 prevented a chance for either critical observation or identification 

 by shooting. While the fall migration of the Black-throated 

 Green Warbler appears to be much later, on the whole, than that 

 of the Blackburnian, Bay-breasted, Cerulean, etc., I believe op- 

 portunities for further investigation of early migration on the 

 Gulf coast might justify the belief that the Black-throated Green 

 Warbler shares to a considerable extent in this early southward 

 migration. 



1 It might be added here that what has been said of the Yellow Warbler 

 applies to a large number of birds migrating through southeast Louisiana, or 

 appearing there even as summer visitors. So often the first record of a bird, 

 even after one has covered much territory, will be of a single individual, 

 instead of the three or four, at least, that one might have expected to find. 

 While this feature could hardly be called characteristic of this region, it is 

 very noticeable, and because of it, a peculiar difficulty attaches to the collec- 

 tion of rrugration data here. It may be partly explained by the sameness of 

 the country, so that the first arrivals are widely dispersed instead of being con- 

 gested in some favorite localities. 



