WARHIJvR SOXC.S. . :{•} 



again throughout October, when no song has l)een lieard nor 

 reported . 



Except when Myrtle bushes entice him away, the Myrtle 

 Warbler keeps well to the higher woods during the vernal 

 migration, but seems just as partial to fields during the return. 



This is a bird of North America, chiefly east of the Rocky 

 Mountains, breeding from the northern United States north- 

 ward. A Pacific coast form has been descril)ed as 



Hoover's Warbler. Dcudroica coronafa hoovcri. (Moa. 



Audubon's Warbler. Dcndroica auduboni. C.-lf). 



Dr. Coues states that the song of this species clo.sely resem- 

 bles the .song of Myrtle. Without describing it Mr. Merrill 

 states that the male has two distinct .songs, and that the female 

 -sings. 



The species replaces the preceding one we.st of the Rockies, 

 north to British Columbia. It is accidental east to the Atlan- 

 tic coast. 



Black-poll Warbler. l^cndroica striata. ()()1. 



In execution the song resembles that of the Myrtle — all' in 

 the same pith and containing a perfect swell, but sounds more 

 like "striking two pebbles together," therefore lacking the 

 liquid quality of Myrtle. There are two renderings, the more 

 musical one containing a prelude of three or fovir distinct 

 notes, like tsip tsip tsip, followed by a twittering tsce tsec tf. 

 The other song is merely a twitter. 



The Black-polls arrive late and make but a short stay, 

 singing the while. They have no .song period on the south- 

 ward journey. 



They remain well up in the trees, and .seem rather partial 

 to th.e woods to the almost entire exclusion of parks. 



Nearly the whole of North America east of the Rockies, 

 and to Alaska and Greenland. Breeding from northern I'nited 

 States northward. 



SPECIES WHOSE SONGS RESEMBLE THAT ()E 

 YELLOW WARBLER. 



Con.sidered accordinsf to the manner of utterance this is a 



