758 U. & P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
CYGNUS AMERICANUS, Sharpless. 
American Swan. 
2 Anas columbianus, Orv, Guthrie’s Geog. 2d Am. Ed. II, 1815, 319 ; based on Whistling Swan, Lewis & Clark, Il, 192. 
Cygnus americanus, SHarpLess, Doughty’s Cab. N. H. I, 1830, 185, pl, xvi.—In. Am. Jour. Se. XXII, 1831, 83 — 
Avp. Orn. Biog. V, 1839, 133; pl. 411.—Is. Syn. 274.—Ib. Birds Amer. VI, 1843, 226; pl. 384- 
Olor americanus, Bonar. Consp. Anser. Comptes Rendus, XLIII, Sept. 22, 1856. 
Anas (Cygnus) cygnus, Bon. Specchio Comp. 237. 
Cygnus musicus, Bonar. Syn. 1827, 379. 
Cygnus bewickii, Sw. F. Bor. Am. If, 1831, 224. 
Cygnus ferus, Nurraty, Man. II, 1834, 368. 
Sp. Cu.—Bill as long as the head, broad, high at the base ; the feathers ending on the forehead in a semi-circular outline. 
Nostrils far forward, the anterior extremity considerably more forward than half the commissure. Tail of 20 feathers. 
Adult pure white ; bill and legs black ; the former with an orange or yellowish spot in front of the eye. Less mature speci- 
mens with the head above tinged with reddish brown. Length, 55 inches; wing, 22.00 ; tarsus, 4.25 ; bill above, 4.20. 
Hab.—Continent of North America. 
The common American swan is equally abundant on both sides of the continent, as well as 
throughout the interior. The young bird is brown, instead of white. The adult seldom, if 
ever, is without the yellow or orange space at the base of the bill, which is otherwise black. 
List of specimens. 
Catal. | Locality. When collected. Whence obtained. Original] Collected by— 
No. No. 
Wrashine ton DMC seme eteee a -|sosn one ea SE dN RS bee BSR eS OSS omebooc |ESasaH Season aooa 
O78 Ml SaltWake:citysesc= so acessse—co==—eo-secs=— Tneut; Beckwith2saeosssssee>|seeneees| eae aan ae oe 
9979 HOGheLbOrN New Memes meee a een eee Drape aOeHentygees cee ae == eesceas Pr. sHenry. = 222=- 
4543 ‘CoastiotaCalitormid=]on= eee s aos neon cones eeee Bieut.“Trowbridgetcesascsece|Seceeoe|ae eee eee ae 
9981 | Fort Vancouver, W. T --------- Dees, TSH SMGov:MS tev ens se ectaal teas eiaaiete| Sears Dr. Coopersn saan 
9976 | Fort Steilacoom--.----.--.-..- Octie2£, 18506)|*Dreusuckleyanea=—sssssseecae BV). | aareecaene aoscse 
CYGNUS BUCCINATOR, Rich. 
Trumpeter Swan. 
Cygnus buccinator, Ricu. F. Bor. Am. II, 1831, 464.—Nurrati, Man, II, 1834, 370.—Avup. Orn Biog. IV, 1838, 
_ 536: V, 114; pl. 406 and pl. 376.—Is. Syn. 74.—Is. Birds. Amer. VI, 1843, 219; pl. 382, 
383.—Eyron, Mon. Anat. 1838, 100. : 
Olor buccinator, Wac er, Isis, 1832, 1234.—Bon. Comptes Rendus, XLIII, Sept. 1856. 
Sp. Cu.—Bill broad, longer than the head ; the feathers ending on the forehead in a semi-elliptical outline. The nostrils 
with the anterior extremity as far forward only as half the commissure. Tail of 24 feathers. 
Adult pure white throughout, the bill and legs entirely black ; the bill without any red spot at the base. Less mature speci- 
mens with the head above tinged with reddish brown. 
Length about 60 inches ; wing, 24.00; bill above, 4.50; tarsus, 4.60. 
Hab.—Western America, from the Mississippi valley to the Pacific. 
This large and powerful swan, doubtless, has special anatomical peculiarities of trachea, to 
distinguish it from CO. americanus, as the note is much more sonorous. It is for this reason that it 
is called Trumpeter, in distinction from the other, or ‘* Whistling Swan.”’ 
