274 U. S. P. R. R. 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. | Sex & | Localtity. When collected.| Whence obtained. | Orig. | Collected by— | Length. | Stretch | Wing. 
No. | age. | | | | No. of wings. 
| 5 ae | = rrr rer. 
2910) lees: |) Columbiairiver--—| April 24. 18864| Ua KaTownsend|=|2-o-2-|-22-_-e-eeee oe se | ane aoncl soon en (eons 
OTE eS dg sae eo enee dowsee == lg dome see pe ear te Bel, || S875. eee 
2909 15 Gy iz... dono aeneeeen | May 31, 1835 |.....- dose cnet Re eee alee | Be sealed 
7656 3 Ft. Steilacoom, W*T.) April 20, 1856 | Dr Suckley.---- TANS | Bae eoeseseasones 6. 00 92005) =See—— 
i Sl er © al dole ew ees doles peas ig eee |) seh 2, | eats eet Se 5. Siuel|t 98008 Beane 
7658 | OM aoc Se doe eeeaese | July 28, 1856 |...... dos 2222 | 504 |----------------|--------|--------|-.2--- 
7670 Cupless (B00 Ss senor Socobossbocaed | Goy. Stevens... 81 | Dr. Suckley_.-.. 5. 75 9. 50 3.75 
O71 i@s o|-ocsee lor eearen | May 1, 1856 |...--. dobeascc abil seo=e do seer = 600 |9A00, eee 
GIO) |easses | Shoalwater bay...-| June 20, 1854 | Dr. Cooper.--..| 82 |---------------- Be 25) 1183150) 1 seme 
W6ISuleecs- |Seeeee douesson ae | Aug. 30, 1854 |...--- doves ss: [f ta6 lecseceeenceee 5212*\||- 8.76.0 eeeeee 
GTA S| eesin = Reese doseeercaouae |------ doweaea |------ dosestase- 86 iloeeneescee-eeoee 5.75 HBO: see55e 
7662 Q | California .....--- bpsceeceeeSatos jeDrarleermannees| 2. occe|saeieem = ate eta ete mee || et 
BOVE: especies | =o6060 dostesesena= Peecccenseeass lepvaneenattans Al Gidea sy aces lites. lla eea | Re 
7660 Q | Sacramento valley. -------------- Lt. Williamson -.|.....- Dr) Heermann=s-|=<=—->s=|==-——-~-|===——— 
AGG Nt Wega eee domo Ber eee es 8 adel Pelee 7 Fea pl (eeetiss | eae ote Re - |e tee oll eten Ee 2 See 
650-5 —-—— | Janos, Mex. ies April —, 1855 | Maj.iHmonxy,.s=2-|) 9 6/0 Dre Kennerly22-|sa-—s-6)|=—=-=——==—| seen 
1652) | se5- 00 | Boca Grande, Mex-| Mar. ==; 1855 2: 222 dowsst2s5- 34a seeeee Oe Reine | Peeocines| Pocmcameloosose 
Gooweseeee | San Bernardino... ey ce ae || ae ets dolees ee | P"569"| 22252 doe 2222 2.2| eo caeaes | Saee eee eee 
WOGon|saeee= | Cocomongor’ ch, Cal Mar. 19, 1854 | Lt. Whipple | ago dees Obs s foes eee e as | aaa eae | eee 
8826 |/=22--- | Laramie peak----- | Saseneecchice eo | ots Warren.oeses Ieaaqc6 Dr. Hayden=2ose|2---cees| see =e see 
SOUG||aeeaee Iprecicee eames Leer eeu John (Gould s=<-| 2.2422 |22 2-252 Sees ee Reece se [eee eee eee 
DENDROICA BLACKBURNIAE, Baird. 
Blackburnian Warbler. 
Motacilla blackburniae, Gmevin, Syst. Nat. I, 1788, 977. 
Sylvia blackburniae, Laruam, Index Orn. II, 1790, 527.—Viertxor, Ois. Am. Sept. IT, 1807, 36; pl. xeviimWitson, 
Am, Orn. III, 1811, 67; pl. xxiiimNurrati, Man. I, 1832, 379.—Avp. Orn. Biog. II, 1834, 
208: V, 73, pl. 135; 399. 
Sylvicola blackburniae, Janpine, Ed. Wilson, 1832.—Ricu. List, 1837.—Bon. List, 1838.—Is. Conspectus, 1850, 
307.—Avp. Syn. 1839, 57.—Is. Birds Am. II, 1841, 48; pl. 87. 
Rhimanphus blackburniae, Casants, Mus. Hein. 1850, 19. 
Sylvia parus, Witson, Am. Orn. V, 1812, 114; pl. xliv, f. 3 —Aup. Orn. Biog. II, 1834, 205; pl. 134. 
Sylvicola parus, Aup. Syn. 1839, 55.—Is. Birds Amer. II, 1841, 40; pl. 83. 
Sylvia lateralis, Steph. Shaw’s Zool. XII, 1817, 659. 
Blackburnian warbler, Pennant, Arctic Zool. II, 412.—Latuam, Synopsis II, 461. 
Hemlock warbler, AUTHORS. 
