Wayne: Bikds of South Carolina. 19 



Redheads in the Charleston Market, which were said to have 

 been killed on the Santee River. 



48. Marila vallisneria (Wils.). Canvas-back. 



This is another species that I have never seen alive, but it has 

 long been known to occur in positive abundance in winter on the 

 lower Santee and Savannah Rivers. My friend Dr. Eugene Ed- 

 mund Murphey procured several specimens on the Savannah 

 River, near Augusta, on January 16, 1905. l 



The Canvas-back breeds from Colorado to Alaska. 



49. Marila marila (Linn.). Greater Scaup Duck. 



This is one of the rarer ducks on our coast, frequenting salt 

 water in small flocks to feed upon mussels and other mollusks, 

 which it obtains by diving in shallow water. My earliest autumn 

 record is October 31, and the great majority migrate during the 

 third week in March, though many are still to be seen in the early 

 part of April. On July 2, 1901, I saw a pair of this species or 

 the next which were apparently uninjured, judging from their 

 extreme shyness . 



50. Marila affinis (Eyt.). Lesser Scaup Duck. 



On the upper Cooper River this duck winters in large numbers, 

 and my belief is that it is decidedly more of a freshwater species 

 than the preceding form. It arrives at or about the same time 

 as the Greater Scaup, but appears to migrate much later in the 

 spring. On the Wacissa river, Florida, this duck occurs in 

 enormous flocks during the winter. During the migrations, it 

 is found in immense flocks in Charleston Harbor. 



51. Marila collaris (Donov.). Ring-necked Duck. 2 



The only specimen of the Ring-necked Duck that I ever shot 

 was obtained on January 11, 1886, eight miles from Charleston 

 on the Cooper River, during a blizzard which lasted a week. 3 



Although this species is said to be abundant in this state, I 

 have been unable to verify this assertion. 



1 A Canvas-back was taken on Cooper River by Mr. E. H. Burton on February 4, 190S. 

 The specimen is preserved in the Charleston Museum (Spec. No. 7233), and its capture 

 was recorded in the Bulletin of the Charleston Museum, IV, 1908, 34. — Ed. 



2 A Ring-necked Duck was taken on the Cooper River by Mr. E. H. Burton, Feb- 

 ruary, 8, 1908, and was recorded in the Bulletin of the Charleston Museum, IV, 1908, 34. 

 The specimen was identified by Mr. Herbert R. Sass, but was too far gone for pre- 

 servation when received at the Museum. — Ed. 



3 This specimen is now in the Charleston Museum (Spec. No. 143). — Ed. 



