274 
U. S. P. R. K. EXP. AND SURVEYS — ZOOLOGY — GENERAL REPORT. 
As stated, the female is considerably duller, showing traces only of the black on the breast; 
the upper parts dull brownish, with darker streaks. Young birds are brown above, with 
dusky streaks ; beneath white, the breast and sides streaked with brown ; the yellow of the 
crown and rump distinct, that of the breast barely appreciable. A winter specimen, (7661,) 
marked male, has the under parts almost pure white, very obsoletely streaked with brown on 
the breast and sides ; the yellow of throat and breast rather distinct ; two bands of white on 
the wings instead of one. 
List of specimens. 
Catal. 
No. 
Sex & 
age. 
Localtity. 
When collected. 
Whence obtained. 
Orig. 
No. 
Collected by — 
Length. 
Stretch 
of wings. 
Wing. 
2910 
2911 
2909 
7656 
7654 
7658 
7670 
7671 
7672 
7673 
7674 
7662 
3728 
7660 
7661 
7651 
7652 
7653 
7663 
8826 
8016 
8 
\ 
3 
a 
Q 
° 
9 
Columbia river 
April 24, 1836 
J K. Townsend . 
5. 12 
8.75 
do 
May 31, 1835 
April 20, 1856 
Ft.Steilacoom,W.T. 
Dr Suckley 
209 
6. 00 
5.87 
9. 00 
9. 00 
do 
July 28, 1856 
May 1, 1856 
June 20, 1854 
Aug. 30, 1854 
do 
Gov. Stevens 
Dr. Cooper 
504 
81 
351 
82 
86 
86 
do 
do 
Shoal water bay 
do 
Dr. Suckley 
5.75 
6.00 
5. 25 
5. 12 
5. 75 
9.50 
9.00 
8.50 
8. 75 
9.00 
3.75 
do 
9 
do 
Janos, Mex 
April— 1855 
Mar. — , 1855 
Maj. Emory 
67 
34 
69 
190 
Boca Grande, Mex. 
do 
Cocomongor'ch, Cal 
Mar. 19, 1854 
Lt. Whipple .... 
do 
DENDROICA BLACKBURNIAE, Baird. 
JSlackburnian Warbler. 
Motacllla blackbumiae, Gmelin. Syst. Nat. I, 1788, 977. 
Sylvia blackbumiae, Latham, Index Orn. II, 1790, 527.— Vieili.ot, Ois. Am. Sept. II, 1807, 36; pi. xcvi.— Wilson, 
Am. Orn. Ill, 1811, 67; pi. xxiii.— Nuttall, Man. I, 1832, 379.— Aud. Orn. Biog. II, 1834, 
208 : V, 73, pi. 135, 399. 
Sylvicola blackbumiae, Jardine, Ed. Wilson, 1832.— Rich. List, 1837.— Bon. List, 1838.— Ib. Conspectus, 1850, 
307.— Aud. Syn. 1839, 57.— Ib. Birds Am. II, 1841, 48 ; pi. 87. 
Rhimanphus blackbumiae, Cabanis, Mus. Hein. 1850, 19. 
Sylvia parus, Wilson, Am. Orn. V, 1812, 114 ; pi. xhv, f. 3 —Aud. Orn. Biog. II, 1834, 205 ; pi. 134. 
Sylvicola parus, Aud. Syn. 1839, 55.— Ib. Birds Amer. II, 1841, 40 ; pi. 83. 
Sylvia lateralis, Steph. Shaw's Zool. XII, 1817, 659. 
Slackburnian warbler, Pennant, Arctic Zool. II, 412. — Latham, Synopsis II, 461. 
Hemlock warbler, Authors. 
