86 



NATURE STUDY IN SCHOOLS. 



The food of the warblers consists largely of insects, but a few species 

 ■eat berries, and some of the tropical warblers vary their diet by devouring 

 small lizards. 



All of our northern warblers are migratory, with the exception of a sin- 

 gle species, the yellow-rump, which is mainly migratory, but a few remain 

 as far north as Massachusetts all winter. 



The following may be considered as a synopsis of all the warblers which 

 occur in Eastern North America, excepting possibly a straggler or two and 

 two or three recently discovered sub-species. The arrangement of the groups 

 is by color, and is thus purely artificial. 



The large type indicates the color groups, and then follows the species. 

 The localities given indicate the breeding range, but this may be somewhat 

 extended by stragglers, in some cases southward along mountain ranges. 



The dates given are the the approximate beginning of the spring and 

 fall migrations. In spring each species is apt to be about ten days in pass- 

 ing a given locality, in fall, often, but not always a longer time. 



It is, of course, understood that the name warbler is ommitted after the 

 name of the species. 



The wag-tailed thrushes and the chats are purposely excluded from this 

 list, as I do not consider them as belonging to the warbler family. The 

 numbers under the cuts indicate those used for the species in this list. 



Fig. 36. 



Fig. 37. 



2. 



3, 



Black and white in streaks Wing bands and tail spots 

 white. 



1. Streaked all over. No ashy above. Crown divided by white line. 

 Female paler. Woodlands. Va., northward. Apr. 20, Sept. 15. Black 

 and White Warbler. 



2. Streaked above on breast and sides. Crown, undivided by a white 

 line. Ashy above. Female and autumnal male greenish. Wing bands, 

 greenish, tail, spots and under tail coverts, white in this stage. Open coun- 

 try and woodlands. Northern Me., northward. May 15, Oct. Black Poll. 



