912 U. S&S. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
Ficures.—Edwards, Birds I, pl. 50.—Viemxor, Gal. II, pl. 294.—Aup. B. of Am. pl. 219, oct. ed. VII, pl. 474.—Goutp B. 
Eur. IV, pl. 399.—Naumann B. of Germ. pl. 330. 
Sp. Cu.—Bill straight, pointed; wing rather short, weak; first quill longest; tail short. A large oval transverse space on the 
wing, white, which is also the color of the under wing coverts and axillary feathers, outer edge of the wing and shoulder brownish 
black. All other parts of the plumage brownish black, with a greenish tinge and darker on the back. Bill black, feet red. 
Younger and winter plumage, under parts, neck and rump white ; head above and back dark brown ; large space of white on the 
wing, as in summer. 
Total length about 13 inches; wing, 63; tail, 2 inches. 
Hub.—Northeastern coast of America, Greenland, (Dr. E. K. Kane ;) South, in winter, to New Jersey. Behring’s Straits, 
Captain Rodgers. 
Very abundant on the northeastern coasts and islands of America, and also in the northern 
latitudes of Europe. This bird is very easily recognized by its black plumage and large white 
space on the wing. 
A single specimen is in the collection before me, collected by the expedition of Captain 
Rodgers on Herald island, inside of Behring’s Straits. 
URIA COLUMBA, (Pallas,) Cassin. 
The Western Guillemot: 
Cepphus columba, Partas, Zoog. Rosso-Asiat. II, p. 348, (1811.) 
Uria mandtii, Lion. Verz. p. 88, (1823) ? ; 
“ Tria mandtii, Licut. Mus. Dresd.” Rercu. Vollst. Naturg. Schwimmy. pl. 4, fig. 47. 
Ficures.—Voy. Vincennes and Peacock, Birds, pl. 38, fig. 1. 
Sp. Cu.—Rather larger than the preceding, bill larger and stronger. White space on the wing, divided by a band of brownish 
black running diagonally from the edge of the wing ; under wing coverts dark ashy, frequently tipped with white ; axillary feathers 
ashy brown. All other parts of the plumage brownish black, with a greenish lustre, and frequently tinged with ashy on the back- 
Bill black, feet red. Younger and winter plumage. Upper parts brownish black; under parts white, generally more or less 
spotted with dark brown; white space on the wing as in summer, but frequently less distinct. 
Total length about 134 inches. 
Hab.—Western and northwestern coast of America. Kamtschatka, (North Pacifie Surveying and Exploring Expedition, 
Captain Rodgers, United States navy.) 
Much resembling the preceding, but easily distinguished by the white space on the wing, 
being divided into two parts, as described above. This bird appears to be exclusively an 
inhabitant of the North Pacific ocean, and rears its young as far south as Puget’s Sound. In 
the fine collection made by Dr. George Suckley, United States army, are young birds scarcely 
feathered, which were obtained at that locality. 
List of specimens. 
| | ] . 
Catal. Sex and Locality. | When colleeted. Whence obtained. | Orig. Collected by— Length.| Stretch Win . 
No. | age. | of wing. | 
4407} @_| Fort Steilacoom, W.T......| 1855.......++68| Dr. Geo. Suckley 24.95 | 7.50 
9907 | J fesenvenees Oe mlanlociel-vepestele)| MAULUSEIO MISO) il sine sescs AO! cicle stele sisies 24.95) 7.00 
DUODN a ctetefeioee| cteleteitiste sar (Wipenpoodnoos sO) cciewse serarsjs'sfs'e UO eteicialersiers sjvie,eio\e,sieiei| OO0)|| satel eieie)vivlsietele’sje’s/cleln/ste-sle.a|a(ei| e’eleia{ejofeiol| melecero}s)ele)| ts eevee 
9910) OMe | ecefou enc GO Scoqs0ondo.00c0d (podooos6no0R COD] GeosRoos( Olippopcepdoer, asco bt). 6soqso coospadcdo9n0 -00000) [sadtcecs||.obqDo20]) coda08 
9906 seeceeee Farrallones, Cal ....... Lieut. Williamson. ........ ens Dr. Heermann. ....seeeees|-sseeees soscccce| scoes . 
