136 Bird -Lore 



May 10; St. Louis, Mo., May 14-22; English Lake, Ind., May 4, 1891 ; 

 Glen Ellyn, 111., May 12, 1896; southern Michigan, May 17, 1894; 

 southern Ontario, May 16, 1892. 



FALL MIGRATION 



The vicinity of Chicago is one of the few places in the United States 

 visited by the Connecticut Warbler during both spring and fall migration. 

 Here the average period of fall occurrence is from August 31 to September 

 10, with extremes of August 30 and September 17. The path of fall 

 migration passes principally east of the Allegheny Mountains and some dates 

 of occurrence along the Atlantic slope are at Saco, Me., September 8-15; 

 Shelburne, N. H., September 14; Pittsford, Vt., September 20; Portland, 

 Conn., September 17 to October i ; southeastern New York, August 26 to 

 October 12; Englewood, N. J., September 3 to October 11 ; Washington, 

 D. C, August 28 to October 12 ; Raleigh, N. C, October 14-24; south- 

 ern Florida, October 9. So far as known, the Connecticut Warbler has 

 not been recorded anywhere during the half of the year from October 22 

 to April 9. 



The Warbler Book 



As the season approaches for the return of the Warblers, I again ask the 

 cooperation of bird students in the preparation of a volume devoted to these 

 attractive birds. 



Since the announcement in Bird-Lore for April, 1904, of plans for this 

 book, many contributions to it have been received. For the greater part, 

 however, they relate to the migration of Warblers; while material of this 

 kind is always valuable, it is less desirable, in the present connection, than 

 information concerning the life histories of these birds. 



The appended study of the Worm -eating Warbler closely approaches the 

 character of manuscript needed. It is plainly based on continued field study 

 with an evident end in view. If you would sound the depths of your knowl- 

 edge of your commonest Warbler, attempt to write a sketch of it similar to 

 that by Mr. Burns. Doubtless you will discover room for further field work, 

 and this we sincerely trust you will find time for during the present season. 



F. M. C. 



