Catalogue of Birds. 297 



more was in their company, but was not obtained ; the male 

 weighed Q\ pounds, the female 4f pounds. 



Mr. Gosse was aware that it was considered a hybrid, but 

 was by no means "free from doubt on the subject." Prof. 

 Baird (Pacific P. R. Reports, Yol. IX.) says, " it is generally 

 supposed to be a hybrid with the muscovy (C. moschata), 

 although from the constancy of its markings and the absence 

 on the face of the peculiarities of the muscovy, it may be ques- 

 tioned whether, after all, it be not entitled to specific rank." 



It is much to be desired that information to establish its true 

 status may yet be obtained. 



250. Anas obscura, Gm. Black Duck. 



251. Dafila acuta (Linn.). Pintail. 



252. Nettion Carolinensis (Gm.). Green-winged Teal. 



253. " crecea (Linn.). English Teal. 



254. Querquedula discors (Linn.). Blue-winged Teal. 



255. Spatula clypeata (Linn.). Shoveller. 



256. Chaulelasmus streperus (Linn.). Gadwall. 



257. Mareca Americana (Gm.). American Widgeon. 



258. " Penelope (Linn.). English Widgeon. 



259. Aix sponsa (Linn.). Summer Duck. 



260. Fulix marila (Linn.). Large Broad Bill. 



261. " affinis (Forster). Little Broad Bill. 



262. " collaris (Donovan). Ping-necked Duck. 



263. Aythya Americana (Eyton). Red-head. 



264. " vallisneria (Wils.). Canvas-back. 



265. Bucepliala Americana (Bon.). Golden Eye. 



266. " albeola (Linn.). Butter Ball. 



267. Histrionicus torquatus (Linn.). Harlequin Duck. 



268. Rarelda glacialis (Linn.). South Southerly. 



269. Camptolaemus Ldbradorius (Gm.). Labrador Duck. 



270. Melanetta velvetina (Cassin). Velvet Duck. 



271. Pelionetta perspicillata (Linn.). Surf Duck. 

 27'2. Oidemia Americana, Swain. Scoter. 



273. Somateria mollissima (Linn.). Eider Duck. 



