[47] 



back on the Potomac and Shelldrake on the James (Names and 

 Portraits of Birds, p. 47). Occasional at Cobb's Island. Said 

 to be tolerably common in West Virginia. 



43. Aythya marila nearctica. Scaup Duck ; Black- 

 head ; Broad-bill ; Blue-bill. — Common winter resident of 

 the larger rivers and bays of the Tidewater and Coast region.- 

 Known also at Washington and Alexandria as Bay-shuffler 

 (Trumbull, Names and Portraits of Birds,, p. 55). Said to be 

 found occasionally on the Ohio and Great Kanawha rivers. 

 This species has been reported by Mr. Hugh M. Smith as having 

 bred in one accidental instance at Mt. Vernon Springs, Va. (The 

 Auk, Vol. V, p. 18). 



44. Aythya affinis. Lesser Scaup Duck ; Lesser Black- 

 head ; Flock Duck ; Raft Duck. — Not uncommon winter 

 resident in the Tidewater and Coast region. According to Drs. 

 Coues and Prentiss it is not very abundant on the Potomac near 

 Washington. Captain C. H. Crumb informs me that it is seen 

 in large flocks in the fall near Cobb's Island. A specimen has 

 been taken near Buckhannon, West Virginia, and it is said to be 

 more common in that State than the preceding species. Addi- 

 tional names given to this duck are River vShuffler at Alexandria 

 and Washington, and Creek Black-head on Chesapeake Bay 

 (Trumbull, Names and Portraits of Birds, p. 58). 



45. Aythya collaris. Ring-necked Duck. — Drs. Coues 

 and Prentiss report this species as a rare winter resident on the 

 Potomac near Washington, arriving about the last week in Sep- 

 tember. I have no other record of its occurrence in the Tide- 

 water region, though it is probably not very rare. Captain 

 Crumb writes me from Cobb's Island, " I have never met with 

 it, but think it occurs here under the name of Mud Duck, but 

 am not positive." 



46. Glaucionetta clangula americana. American 

 Golden-eye; Whistler; Whistler-wing; Cub-head — 

 Abundant winter resident on the salt water bays and larger rivers 

 of Eastern Virginia. It has been reported that it generally ap- 

 pears on the Ohio by the last week in September. 



47. Charitonetta albeola. — Buffle-head ; Dipper ; But- 

 ter-ball. — Abundant winter resident of the Tidewater and 



