278 U. S. P. R. R. EXP. AND SURVEYS ZOOLOGY — GENERAL REPORT. 
List of specimens. 
Catal. 
No. 

1336 
307 
736 
2430 
42 
6484 
699 
10162 
Sex and 
age. 
Locality. 
When collected. 
Whence obtained. 
Length. 
Stretch 
of wings 
Wing. 
S 
8 
do 
April — , 1844 .... 
April 24, 1841 
S. F. Baird 
do 
6.50 
5.41 
5.41 
9. 00 
8. 25 
9.33 
2.91 
do 
Sept. 21, 1842 
do 
3. 00 
Q 
o 
do „. 
Sept. 5, 1845 
do 
June 19, 1840 
Washington, D. C 
Northern 111 
Jane 7, 1842 
S. F. Baird 
DENDROICA MONTANA, Baird. 
Blue Mountain Warbler. 
Sylvia montana, Wilson, Am. Orn. V, 1812, 1 13 ; pi. xliv, f. 2.— Aud. Orn. Biog. V, 1839, 294. 
Sylvicolamontana, Jard. ed. Wilson, 1832.— Aud. Syn. 1839, 62.— Ib. Birds Am. II, 1841, C9 ; pi. 98. 
Sylvia tigrina, Vieillot, Ois. Am. Sept. II, 1807,34; pi. xciv.— Bonap. Obs. Wils. 1826, No. 165. (Not of 
Latham.) 
" This species is four inches and three-quarters in length; the upper parts a rich yellow olive; front, cheeks, and chin 
yellow, also the sides of the neck ; breast and belly pale yellow, streaked with black or dusky ; vent plain pale yellow. Wings 
black ; first and second rows of coverts broadly tipped with pale yellowish white ; tertials the same ; the rest of the quills edged 
witli whitish. Tail black, handsomely rounded, edged with pale olive ; the two exterior feathers on each side white on the 
inner vanes from the middle to the tips, and edged on the outer side with white. Bill dark brown. Legs and feet purple 
brown; soles yellow. Eye dark hazel. " — (Wilson.) 
Hab. — " Blue mountains of Virginia." 
The essential features of this bird, "yellow olive above, front and beneath yellow to the vent, 
(paler behind,) the breast and belly streaked with dnsky or black ; wings and tail black, the 
former with two white bands, the latter with the outer feathers white within from the middle 
to near the tip/' are not shared by any other known North American species in adult spring 
plumage. The relationships, however, to the pine creeping warbler are very close, and it is 
not unlikely that some states of autumnal plumage in this, or even in the black poll warbler, 
may furnish a clue to the species. 
A single specimen was taken in the Blue mountains of Pennsylvania by Wilson, and is the 
only one described from the limits of the United States. Audubon figures a skin in the 
Museum of the Zoological Society said to have been brought from California. 
