BIRDS—SYLVICOLIDAE—DENDROICA PENNSYLVANICA. 
279 
DENDROICA PENNSYLVANICA, Baird. 
Chestnut-sided warbler. 
JSIotacilla pennsylvanica, Linnaeus, Syst. Nat. I, 1766, 333, No. 19.—Gmelin, Syst. Nat. I, 1788, 971, No. 19. 
Sylvia pennsylvanica, Latham, Ind. Orn. II, 1790, 540. —Wilson, Am. Orn. I, 1808, 99 ; pi. xiv, f. 5. 
Motacilla icterocephala, Linnaeus, Syst. Nat. I, 1766, 334, 25.— Gmei.in, Syst. I, 1788, 980. 
Sylvia icterocephala, Latham, Ind. Orn. II, 1790, 538.— Vieillot, Ois. Am. Sept. II, 1807,31 ; pi. xc— Bon. 
Obs. Wils. 1826, No. 140.— Aud. Orn. Biog. I, 1832,306 ; pi. 59.— Nuttall, Man. I, 1832, 
380. 
Sylvicola icterocephala, “Swainson,” Jard. ed. Wilson, 1832.— Rich. List. 1837.— ‘Bonap. List. 1838.—In. 
Conspectus, 1850, 308. — Aud. Syn. 1839, 54. —Ib. Birds Am. II, 1841, 35; pi. 81. 
Sp. Ch.— J\Iale. —Upper parts streaked with black and pale bluish gray, which becomes nearly white on the fore part of the 
back ; the middle of the back glossed with greenish yellow. The crown is continuous yellow, bordered by a frontal and super¬ 
ciliary barid, and behind by a square spot of white. Loral region black, sending off a line over the eye, and another below it. 
Ear coverts and lower eyelid and entire under parts pure white, a purplish chestnut stripe starting on each side in a line with 
the 61ack moustache and extending back to the thighs. Wing and tail feathers dark brown, edged with bluish gray, except 
the secondaries and tertials, which are bordered with light yellowish green. Tho shoulders with two greenish white bands. 
Three outer tail feathers with white patches near the end of the inner webs. 
Female like the male, except that the upper parts are yellowish green, streaked with black ; the black moustache scarcely 
appreciable. 
Length, 5 ; wing, 2.50 ; tail, 2.20. 
Hab. —Eastern United States to the Missouri. 
The greenish white of the wing is rather in one band in the male than in two, the greater 
coverts being edged as well as tipped with this color. 
The male (possibly of the first year) in autumn is very different from either male or female 
in spring. The entire upper parts are of a continuous light olive green ; the under parts 
white; the sides of the head, neck, and breast ash gray, shading insensibly into and tinging 
the white of the chin and throat. No black streaks are visible above nor on the cheeks, and 
the eye is surrounded by a continuous ring of white, not seen in spring. The wings and tail 
are much as in the female. 
In one specimen from St. Louis (6977) the black completely encircles the eye, and the bill is 
entirely bluish black, instead of being brown beneath. 
List of specimens. 
Catal. 
No. 
Sex. 
Locality. 
When collected. 
Whence obtained. 
Orig. 
No. 
Collected by— 
Length. 
Stretch 
of wings. 
Wing. 
1694 
3 
Carlisle, Pa-...._ 
Sept. 4, 1844 
S F Tin i rd 
5. 25 
7. 41 
2. 75 
2570 
3 
May 4, 1844 
__do __ 
5. 16 
8. 00 
2. 08 
2664 
3 
May 18, 1844 
5. 08 
7. 83 
2. 08 
943 
3 
May 6, 1844 
_do_ 
5. 00 
7. 75 
2. 50 
976 
Q 
May 16, 1844 
5. 00 
7. 50 
2.50 
7361 
Cleveland, Ohio_ 
J. P. Ivirtland... 
West Northfield, Ill.. 
May 15, 1855 
R. Kennicott_ 
South Illinois_,_, _ 
May 12. 
__do_„_ 
6976 
3 
St. Louis, Mo_ 
May 12, 1857 
Lieut. Bryan_ 
64 
W. S. Wood_ 
6978 
May —, 1857 
6977 
3 
May 12, 1857 
_do«__. 
58 
4670 
Mouth of Platte river. 
April 26. 
Lieut. Warren... 
Dr. Hayden. 
5. 00 
7. 75 
2.50 
