BREWSTER'S WARBLER 75 



(c} Chip-a-chip-a-chip-a-shree, the first phrase of this song is 

 exactly like the song heard during the second song period of the 

 Blue-winged Warbler, the second being a typical Golden-wing syl- 

 lable. 



Besides these three songs we heard a sharp call-note tzip and 

 a thin scolding note when we came too near the nest." 



Nesting Habits. The more significant discoveries in regard to 

 the breeding of Brewster's and Lawrence's Warblers are scheduled 

 below : 



Englewood, N. J. V . pinus 9 , feeds two young, both were taken, 

 one proving to be pinus the other lawrencei (Dwight*}. 



Englewood, N. J. V. leucobronchialis 2 evidently mated with 

 V. pinus $ the three of their offspring taken were typical of pinus. 

 {Chapman*'}. 



Englewood, N. J. V. leucobronchialis 2 , with strong yellow 

 wash on breast, mated with typical pinus $ ; eggs destroyed. (Chap- 

 man 9 } . 



New York City. V. lawrencei $ , mated with pinus 2 . The six 

 young were apparently typical of pinus. (Bildersee ; Beebe 17 ). 



Ossining, N. Y. V. chrysoptera 2 feeds two young, one of 

 which collected, is typical of pinus ; the other, which escaped, was seen 

 to resemble the mother and had no yellow on the breast. (Fisher*}. 



Bethel, Conn. V. chrysoptera $ , breeds with V. pinus 9 , the 

 only one of the five young secured was typical of V. pinus. 

 (Meeker* 1 }. 



Bridgeport, Conn. V. leucobronchialis $ , and V. pinus 2 , feed 

 young showing "a marked general similarity to the young of pinus." 

 (Eames*}. 



North Haven, Conn. V. leucobronchialis feeds two young, one 

 typical of pinus, the other like pinus but with yellow wing-bars. 

 (Bishop*}. 



Portland, Conn. V. pinus, $ breeds with V. chrysoptera 9 , the 

 five young resemble those of pinus. (Sage 12 }. 



Portland, Conn. V. leucobronchialis 9 breeds with V. chrys- 

 optera $ ; nest and eggs taken. (Sage 13 ). 



Discussion of Status. The relationships of these Warblers have 

 been the subject of much discussion. It has been stated of one or 

 the other or both, that they were distinct species, hybrids, color 

 phases, and mutants, but, we may now be said to have passed the 

 purely theoretical stage in our study of these birds, incontrovertible 

 observations and large series of specimens furnishing us with defin- 



