258 
U. S. P. K. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
List of specimens. 
Catal. 
No. 
Sex 
& age. 
Locality. 
When col¬ 
lected. 
Whence obtained. 
Orig’l 
No. 
Collected by— 
Length. 
Stretch 
of wings. 
Wi ng. 
Remarks. 
7925? 
4672 
4673 
7697 
3994 
3995 
3993 
7692 
7693 
7694 
7695 
7696 
2929 
1912 
4392 
10159? 
4221 
9 
Bon Honune Island.... 
Mouth of Big Sioux.... 
3 
May 4, 1856 
5.12 
8.00 
2.50 
Eyes dark,bill blue 
4.50 
6.75 
2.00 
50 
41 
347 
362 
300 
355 
316 
99 
99 
163 
Eyes black; bill 
lead color. 
Fort Stcilacoom, W. T. 
4.62 
7.00 
April 11. 
May 2, 1856 
April 25, 1856 
May 15, 1835 
May 16, 1835 
May 4, 1855 
5.00 
7.50 
3 
5.00 
7.37 
3 
9 
J. K. Townsend . 
Fort Dalles, Oregon.... 
O 
7.37 
2.50 
Winter 5 53-’4 
HELMINTHOPHAGA PEREGRIN A. Cabanis. 
Tennessee Warbler. 
Sylvia per egrina, Wilson, Am. Orn. Ill, 1811,83; pi. xxv, f. 2.— Bonap. Syn. 1828, 87.— Aud. Orn. Biog. II, 
1834, 307; pi. 154. 
Sylvia (Dacnis) peregrina, Bonap. Obs. Wils. 1826, No. 155. — Nuttall, Man. I, 1832, 412. 
Sylvicola peregrina, Rich. List, 1837. 
Vermivora peregrina, Bonap. List, 1838. 
Helinaia peregnna, Aud. Syn. 1839, 68.— Ib. Birds Am. II, 1841, 96 ; pi. 110. 
Ilelmitheros peregrina, Bonap. Consp. 1850, 315. 
Helminthophaga peregrina, Cab. Mus. Hein. 1851, 20. 
“ Sylvia tennessaei, Vieillot,” Gray. 
Sp. Ch. —Top and sides of the head and neck ash gray; rest of upper parts olive green, brightest on the rump. Beneath 
dull white, faintly tinged in places, especially on the sides, with yellowish olive. Eyelids and a stripe over the eye whitish ; a 
dusky line from the eye to the bill. Outer tail feather with a white spot along the inner edge near the tip. Female with the 
ash of the head less conspicuous ; the under parts more tinged with olive yellow. Length, 4.50 ; wing, 2.75 ; tail, 1.85. 
Hab .— Eastern United States to the Missouri. 
In this species the bill is small and quite acute. The wings are long, reaching beyond the 
middle of the tail, which is slightly emarginate. The second and third quills are longest; the 
first hut little shorter, and longer than the fourth. 
It is very seldom that specimens are found with the gray neck and crown, this being gen¬ 
erally, especially in winter dress, of the same olive as the back, and the greenish yellow of the 
under parts much more conspicuous and extended. In this dress it becomes very difficult to 
distinguish it from autumnal specimens of H. celata. The under parts of the latter species are, 
however, generally of a brighter yellow, especially on the tail coverts, and the wing is consid- 
erably shorter ; the superciliary stripe, too, is less distinct. 
Specimens from Pennsylvania appear to have the bill larger than more western ones. The 
Sylvia bicolor of Vieillot (Ois, Am. Sept. II, 1807, 32 ; pi. xc, bis) cannot belong to the Sylvia 
