SEA DUCKS 



(150) Marila collaris 



(Donnvtn?). (Lat,, collarL'd). 



RING-NECKED DUCK; RING- 

 BILL. Ad. cf — Bill black, with a 

 broad, light blue band near the end. 

 A band of chestnut around the neck; 

 head glossed with purple; tiny spot on 

 chin white; speculum gray; back 

 black. Ad. 9 — No collar; grayish- 

 brown, white below; cheeks, chin 

 and eye-ring white; speculum gray. 

 Smaller but somewhat like the 9 Red- 

 head. L., 16.50; W., 7.50; T., 2.75; 

 B., 1.75, not widened at the end as 

 are bills of Scaup Ducks. 



Range — Breeds from southern Wis. 

 and northern Cal. north to B. C. 

 and Alberta. Winters from N. J., 

 111. and B. C. southward. Occurs 

 during migration on the North Atlan- 

 tic coast. 



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ican. The chief distinction between the two species, other 

 than a shght difference in size, is that the large Scaup has 

 a slight greenish gloss on the otherwise black head, while 

 the Lesser Scaup has a purplish gloss. 



Both Scaups have about the same range in this country. 

 If there is any difference, it is that the larger bird is most 

 abundant on the coast during migrations, while the smaUer 

 one is more commonly met -with inland. The large Scaup 

 usually is found in rather small flocks containing not more 

 than a dozen individuals, while the smaller one very often 

 gathers in immense "rafts." 



RING-NECKED DUCKS are of the same size as Lesser 

 Scaups, but the back of the male is wholly black, the bill 

 is banded and the neck has a chestnut ring. 



The habits of Ring-necked Ducks are practically the same 

 as those of Scaups, Redheads and other sea ducks. Their 

 flight is very swift, they come to decoys readily, they take 

 wing from the water easily and with a jump and they can 

 secure food at considerable depths. 



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