QUARTERLY BULLETIN 
OF THE 
NUTTALL ORNITHOLOGICAL CLUB. 
Vol. I. A.P-I1TL, 1876. Mo. 1. 
DESCRIPTION OB' A NEW SPECIES OF HELMINTHOPHAGA. 
BY WM. BREWSTER. 
Helminthophaga LEUCOBRONCHIALIS. Pl. 1 * 
Adult male ; summer plumage. Crown, bright yellow, slightly tinged 
with olive on the occiput. Greater and middle wing coverts, yellow, not so 
bright as the crown. Superciliary line, cheeks, throat and entire under parts; 
silky-white, with a slight tinge of pale yellow on the breast. Dorsal surface, 
— exclusive of nape which is clear ashy — washed with yellow, as are also the 
outer margins of the secondaries. A narrow line of clear black passes from 
the base of the upper mandible, through and to a short distance behind the 
^ eye, interrupted however by the lower eyelid, which is distinctly wEite. No 
trace of black on the cheeks or throat, even upon raising the feathers. Bill 
black. Feet, dark brown. Dimensions — length, 5.I9 ; extent, 7.88 ; wing, 2 .45 ; 
tarsus, .71; tail, 1.86; culmen, ,53. 
It will be seen from the above description that this bird 
resembles most closely the Golden-winged Warbler, C Helmin- 
thophaga chrysoptera.) 
The entire absence of black or ashy on the cheeks and 
throat, the peculiar character of the superciliary line, and the 
white lower eyelid, present howeyer differences not to be rec- 
onciled with any known seasonal or accidental variation of that 
species. The restricted line of black through the eye gives the 
head a remarkable similarity to that of Helminthophaga pinus^ 
but' the semblance goes no farther. 
The specimen above described was shot by the writer in 
Newtonville, Mass., May 18, 1870. It was in full song when 
taken and was flitting about in a thicket of birches near a 
swampy piece of oak and maple woods. As nearly as can be 
remembered it did not difier much in either voice or actions 
*• The original of our plate was drawn and colored by Robert Ridgeway, 
Esq., of the Smithsonian Institution, and presented by him to Mr. Brewster. 
