^°|- ^^n KoPMAN, Bird Migration ill the Loiver Miss. Valley. A'l 



Thrushes as they made the note, but the next day one called as I 

 watched it through my glass. The Gray-cheeked were present 

 only the 9th and loth, but I last observed the Wilson's in the 

 woods May 13, and the last were heard in night migration mid- 

 night of May 16. This is the latest the Wilson's Thrush has 

 ever been recorded in southern Louisiana, as the loth of May is 

 the latest for the Gray-cheeked Thrush. The Olive-backed prob- 

 ably remains as late, but there is no later record than May 4. 



As the abundance of these rarer thrushes is often a characteris- 

 tic feature of the late spring migration of this section, so the 

 absence of most of the less common Dendroicce is also characteris- 

 tic. When they do occur, however, it is almost entirely very late 

 in the season, as in the cases of the thrushes. The Black-throated 

 Blue Warbler is an exception to the latter statement. It is rare, 

 but of the two records of its occurrence of which I know, both 

 fell before the first of April. The Magnolia Warbler, however, 

 the Blackburnian, the Chestnut-sided, the Bay-breasted, and the 

 Black-throated Green, are usually seen, if at all, in the late spring. 

 At New Iberia, La., in the south central part of the State, where 

 the prairies begin to encroach, I have seen a female Bay-breasted 

 Warbler May 15. Strange enough, the weather at the time did 

 not show tlie usual fall in the temperature that accompanies, or, 

 perhaps, causes the tarrying of the spring travelers. A majority 

 of the few records for the occurrence of the Bay-breasted Warbler 

 at this latitude in spring occur between the 25th of April and the 

 10th of May. The appearance of the Redstart at New Orleans 

 and other points near it in spring occurs mostly at the same time. 

 With the Bay-breasted Warbler seen at New Iberia there was a 

 male Redstart. The Tennessee Warbler has recently been proved 

 to have the same propensity. The past spring the only Tennessee 

 Warblers I saw at New Orleans, and among the few of wiiich I 

 have any spring records, were noted between April 26 and May 9. 

 Some were present almost every day of that period, and they 

 seemed to be lingering contentedly. 



Outside of the Warblers and Thrushes, there are other species 

 that loiter unaccountably. For several years in succession the 

 American Pipit was seen in abundance at New Orleans as late as 

 the 20th of April. Small flocks would be seen even until the end 



