THE BIRDS OF NEW JERSEY. 269 



642 Vermivora chrysoptera (Linnaeus). 

 Golden-winged Warbler. 



Adult male. Length, 5.10. Wing, 2.45. Above, bluish-gray; crown, yellow ; 

 wing-coverts tipped with yellow forming two bands; three outer tail feathers 

 with large white spots on the inner web, the outermost more than half white; 

 throat, black'; rest of under parts, white, washed with gray on the sides ; sides 

 of face, black, with a broad white stripe separating this from the black on the 

 throat, and a short white line over the eye. In autumn the black throat is 

 usually veiled with short white tips to the feathers. 



Adult female. Tinged with green above, and black areas replaced by dark 

 gray. 



Young in first summer. Above, olive-gray ; below, pale olive-yellow ; throat, 

 dusky. 



Nest on the ground, built of leaves and grass ; eggs, four to six, white, 

 speckled on the larger end with reddish-brown, .62 x .50. 



Rather rare transient visitant, spring, May 12th to 16th; autumn, 

 August 15th to September 5th, and rare summer resident in the 

 northern counties. 



The Golden-wing is a close ally of the Blue-winged Warbler which 

 it resembles in habits. Mr. Thurber calls it a rare summer resident 

 at Morristown, and Mr. P. B. Philipp has found it nesting at Newton, 

 Sussex county. Dr. Dwight and Mr. Rhoads found it at Lake Hopat- 

 cong in summer and regard it as a breeder there, and in June, 1909, 

 Mr. Rhoads found it at various points in northern Passaic and Sussex 

 counties. 



This spiv K> and the Blue-winged Warbler are supposed to hybridize, 

 as only in this way can we account for the curious birds known as 

 Bicwsters and Lawrence's Warblers which are intei mediate between 

 them. 



Vermivora leucobronchialis (Brewster). 



Brewster's Warbler. 

 Vermivora leucobronchialis (Brewster). 



Lawrence's Warbler. 



Those birds are now generally recognized as hybrids, between the fiiue- 

 winsed and Golden-winged Warblers. firewater's Warbler is essentially a 

 (iolden-wing without the black throat, while Lawrence's Warbler is a Blue- 

 wing with a black throat, but various intermediate forms have also been ob- 

 tained. 



