254 U. S. P. R. K. EXP. AND SURVEYS ZOOLOGY GENERAL REPORT. 
HELMINTHOPHAG A PINUS, B a ir d . 
Blue-winged Yellow Warbler. 
Cerlhia pinus, Linn. Syst. Nat. I, 1766, 187.— Gmelin, I, 1788, 478. 
Sylvia pinus, Latham, Index Orn. II, 1790, 537.— Vieillot, Ois. Am. Sept. II, 1807, 44. (Not of Wilson.) 
Sylvia solitaria, Wilson, Am. Orn. II, 1810, 109 ; pi. xv.— Add. Orn. Biog. 1, 1832, 102 ; pi. 20. 
Sylvia (Dacnis) solitaria, Bonap. Obs. Wils. J. A. N. S. IV, 1826, 490.— Audubon (name on plate ,) pi. 20.— 
Nuttall, Man. I, 1832, 410. 
Syhicola solitaria, Rich. List, 1837. 
Vermivora solitaria, "Swainson," Jard. ed. Wilson, 1832. — Bonap. List, 1838. 
Helinaia solitaria, Aud. Syn. 1839, 69.— Ib. Birds Amer. II, 1841, 98; pi. 111. 
Hdmitheros solitarius, Bonap. Conspectus, 1850, 315. 
Hclminthophaga solitaria, Cabanis, Mus. Hein. 1850- '51, 20. 
Sp. Ch. — Upper parts and cheeks olive green, brightest on the rump ; the wings, tail, and upper tail coverts, in part, bluish 
gray. An intensely black patch from the blue-black bill to the eye, continued a short distance behind it. Crown, except 
behind, and the under parts generally, rich orange yellow. The inner wing and under tail coverts white. Eyelids, and a short 
line above and behind the eye, brighter yellow. Wing with two white bands. Two outer tail feathers with most of the inner 
web, third one with a spot at the end white. Female and young similar, duller, with more olivaceous on the crown. 
Length, 4.50 ; wing, 2.40 ; tail, 2.10. 
Hub. — Eastern United States to the Missouri ; south to Guatemala. 
The bill in this species is conical and very acute, shorter than the head. The first four quills 
are nearly equal and considerably longest. The tail is emarginate and slightly rounded. 
This species is somewhat like Protonotaria citrea, though much smaller. The yellow of the 
head is limited to the fore part of the crown. The black band to the eye and the white on the 
wing are not found in the other species. 
The summer or autumnal plumage of this species agrees quite well with the description of 
Sylvia montana of Wilson, in everything but the streaks on the sides of the body. 
As this species is unquestionably Certhia pinus of Linnaeus, it becomes necessary to restore 
his specific name, instead of using solitaria of Wilson. 
List of specimens. 
Catal. 
No. 
Sex& 
age. 
Locality. 
When collected. 
Whence obtained. 
Orig. 
No. 
Collected by — 
2229 
408 
1131 
6983 
8015 
S 
2 
o 
8 
Carlisle, Pa 
May 6, 1845 
May 20, 1841 
July 22, 1843 
May 12, 1857 
S. F. Baird 
do 
do 
do 
61 
W. S. Wood 
