530 U. S&S. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
List of specimens. 
Catal. |Sex. Locality. When collected |Whence obtained. | Orig. | Collected by— | Length. | Stretch | Wing. 
No. No. of wings 
ea Buia | | 
2835 | @ | Columbia river__-_..- |-------------- SahBalrdie sees Juekee CLOWDSeDG) =| Scere |p ee eines eee 
5531 | dG | Petaluma, Cal...__.. Feb. —,1856 | E. Samuels ----- 195 ae esse Ye Se ee es eee 
S526) |e ce Ase aes este Beeonses Sarae Beene do saconene S'S] ane ee ree re see ae ae eee | eet 
6030s BOR see donee ae weu| May 14,1856, |b--oos dOneeene se: 9390 | paeee e eeet ot S Teo Wed: 4. 33 
S599n | faaslsaneMrancisco; Cali o_|o2.-- «= s=aao—n RDC UUSS eats | treme eee tne Se Caton 3 Bl epeaso| Seen55 
HISSa row |heanta, Claray Cal’ 22.15. 2 o2ssascees Govestevens=——.|22 022. Dr. Cooper ----- 8300}, 13300 spoon 
UE BEY He) |-eses= dossseecess cee |2one nnn - nee ee-|------ Soyer ogee SalI doeecees ee! 8.12 | 13-20 Oeste = ae 
8601 |----| Sacramento valley---|.---..--.--._- Lt. Williamson..]...._. DrSHeermann\s2|2ssseees| oe ees |p eee oe 
8597 |....| Camp 150, Cocomongo; May 19,1854 | Lt. Whipple ----| 188 | Kenn. & Moll_..|-.-.----|--..----|------ 
ranch, Cal. 
4599 ?)....| Colorado river, Guile Ee ASE 5 aly 2 Se ahs Major Emory --- BON CAS Schott 22a | Sere sao eee 
4600) | Bens |S Seno dost Ss. e Se ee Saree Sse Cease dor ss=s2-|542 20) Stee ee doses Seba | kerbs tee | Se Peer eee 
AGO S(t eeee eee doeesseeh edt | Mar. —, 1854 |_----- dows ae at AV eases AGL Soro PAl bereits | Meee ae 
AGELAIUS TRICOLOR, Bon. 
Red and white-shouldered Blackbird. 
Icterus tricolor, *‘ Nutraui,’’ Avup. Orn. Biog. V, 1839, 1; pl. 388.—Nurratr, Man. I, 2d ed. 1840, 186. 
Agelaius tricolor, Bon. List, 1838.—Aup. Syn. 1839, 141.—In. Birds Amer. IV, 1842, 27; pl. 214. 
Sp. Cu.—Tail nearly even. Second and third quills longest ; first a little shorter than the fourth. Bill slender, not half as 
high as long. 
Male —General color uniform lustrous velvet black, with a decided greenish reflection. Shoulders and lesser wing coverts 
brownish red, of much the color of venous blood; the median coverts of a well-defined and nearly pure white, with sometimes 
a brownish tinge. ‘ 
Female—Dark brown, variegated with dark grayish ash. No median stripe on the crown, nor any maxillary one, and scarcely 
a superciliary. 
Length, 9.20; wing, 4.85; tail, 3.90. 
Hab.—Coast of California. Colorado river? 
The bill of this species is about the length of that of A. phoeniceus, it is, however, lower ; the 
greatest height perpendicular to the base of the gonys being considerably less than half the 
culmen. There are distinct wrinkles or striae extending from the nostrils parallel with the 
culmen, and sometimes on the lower jaw nearly parallel with the gonys. Tail very nearly even, 
or slightly rounded. Tarsus about equal to the middle toe. The second and third quills are 
longest; the first much longer than the fifth. 
The female of this species is dark brown above, the feathers margined with brownish gray ; 
the under parts dark gray, the feathers broadly streaked with dark brown. The throat is con- 
spicuously streaked, its ground color lighter than on the belly. There is a faint indication of a 
paler superciliary stripe, most distinct behind the eye. In one specimen there is no red on the 
wing; in another it is quite distinct. The under surface of the wing and the axillaries are 
sooty plumbeous brown. 
Immature males sometimes have the white on the wing tinged with brownish yellow, as in 
A, phoeniceus. The red, however, has the usual brownish orange shade so much darker and 
duller than the brilliantly scarlet shoulders of the other species. The relationships generally 
between the two species are very close, but the bill, as stated, is slenderer and more sulcate 
in tricolor, the tail much more nearly even; the first primary longer, usually nearly equal to or 
longer than the fourth instead of the fifth, 
