390 U. Ss. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
List of specimens. 
Catal. | Sex. Locality. | When col- | Whence obtained. | Orig?l Collected by— Length | Stretch | Wing. Remarks. 
No. | lected. No. fwings.| 
[pote et see |e f 
| Racine; Wisisissccisisiecssis ac ey ean -...| N. W. University... 
| Independence ..........| June, 1857.,.| Dr. Cooper........ | 
..| Fort Leavenworth........ | April 21, 1856 | Lieut. Warren..... 
Soagen Ocneceleiecistesisisiars ..| Nov. 27, 1854 | Lieut. Couch...... 
| Fort Riley, K. T..ccee.. .|sevccccvcscees Drs Hammon. « eee ccei ones sane vena rele 
seseisie OO ee sivecrela's's oie ciejeieg |) LOO Osestsieinie.sie-e:| HH AImMOnd. & Vesey.) 
conees DO. ev ee cece eeeeee es] IESG sseee see. Dr. Hammond ..... bn Hgecrrres cri ence 
East of Fort Riley.......- June 18, 1856] Lieut. F. T. Bryan.| 29 | W.S. Wo0d....|..00 ese. [cece ceeeleces oes |ke-sjeie(ors ots a/aaia\slatetsia/s}n/ciatel 
Mouth of Big Nemaha..../ April 2, 1856 | Lieut. Warren..... . Hayden.... 
New Mexico. .ccaies coeses R. H. Kern 
Western, Texas .....000: Capt. Pope 0 
Black Hills, Neb..... .. Lieut. Warren. ...|.. 
ceeees Oasisviee esieeisisieecciee|ive sine AD siceces| vomecicAQrecaceineeaneleresce|cocees DOs cnscas 
Fort Massachusetts, N. M.|.eccscsseeeee Del etersiacaaabale setiwein aete| ise oiateteterelaveasivers/arai|aterererccarerall wermisieieeail Sip 
seen cesses [SAIL MIA: Oltyeivcccieceses Jibs aisles sineiayaine Capt. Stansbury .calcieie cere} cice) clewislsielee + cil|ia'viei s'etacifiieieiniaetes nels eens 
PARUS ATRICAPILLUS, Linn. 
Black-cap Titmouse. 
Parus atricapillus, Linn. Syst. Nat. 1, 1766, 341.—Gm. I, 1788, 1008.—Forster, Philos. Trans. LXII, 1772, 383.— 
Witson, Am. Orn. I, 1808, 134; pl. viii, f. 4—Bon. Obs. Wilson, J. A. N. S. IV, 1825, 254. 
(Differences from P. palustris.).—Avupuson, Om. Biog. 1V, 1838; pl. 353, f. 8-—Is. Birds Amer. 
IJ, 1841, 146; pl. 126.—Cassin, Ill. I, 1, 1853, 17. 
Poecila atricapilla, Bon. Consp. 1850, 230 
Parus palustris, Nurr. Man. I, 1532, 79; 
Sp. Cu.—Second quill as long as the secondaries. Tail very slightly rounded ; lateral feathers about .10 shorter than middle. 
Back brownish ashy. Top of head and throat black, sides of head between them white. Beneath whitish ; brownish white 
on the sides. Outer tail feathers, some of primaries, and secondaries conspicuously margined with white. 
Length, 5; wing, 2.50; tail, 2.50. 
Hab.—fastern North America along the Atlantic border. 
In this species the first quill is spurious ; the fourth quill is longest ; the fifth and sixth 
successively a little shorter ; the third is about equal to or a little shorter than the eighth ; the 
second is a very little longer than the secondaries. The tail is a little rounded, the innermost 
feather longest, the rest successively a little shorter. The greatest difference in length of tail 
feathers amounts to .10 of an inch. 
The entire crown, from the bill to the upper part of the back, coming down on the sides to 
the lower level of the eye, is pure black, although the edge alone of the lower eyelid is of this 
color. A second black patch, begins at the lower mandible and occupies the entire under 
surface of the head and throat, but not extending as far back within a quarter of an inch as 
that on the upper part of the neck. The space between these two patches, on the sides of the 
head and neck, white, this color extending along the black of the back of the neck as far as its 
truncated extremity, but not bordering it behind. The middle of the breast and belly, as far 
as the vent, are dull white, that immediately behind the black of the throat a little clearer. 
The sides of the breast and body under the wings, with the under tail coverts, are pale, dull 
brownish white. The back, rump, and upper tail coverts are of a dirty bluish ash, washed with 
yellowish brown, especially on the rump. The wings are brown; the outer edges of the third 
to the seventh primaries narrowly edged with whitish ; the innermost secondaries more broadly 
