1910] The Ottawa Naturalist. 161 



36. Marila marila, Scaup Duck; Greater Blue-bill; Black- 

 head. One of our most common migrants. In April large flights 

 can be seen travelling westward over the Ottawa and in October 

 eastward. This species, together with the Black Duck, Hooded 

 Merganser and Golden-eye, furnish the greater number of the 

 ducks brought into our market in fall, it being second in point of 

 numbers. Dates: April 6th, (1909); November 9th (1908). 



3 7. Marila ajfinis, Lesser Scaup Duck, Lesser Blue-bill. A 

 much less common migrant than the preceding. On October 

 12th, 1908, Mr. N. Lachance took one on Shirley's Bay; No- 

 vember 6th, 1905, Mr. E. White a fine adult male on Lochaber 

 Bay, and November 15th, 1903, one on the Rideau. 



38. Marila collaris, Ring-necked Duck. Another far from 

 common spring and fall visitor. May probably sometimes be 

 overlooked and taken for the Greater Scaup, which it much 

 resembles. On October 27th, 1907, Mr. N. Lachance shot several 

 on Shirley's Bay. 



39. Clangula dangula americana, Golden-eye; Whistler. 

 An abundant migrant, and not a few remain with us all winter 

 on open places in the rivers, as along the Des Chenes Rapids. 

 The first migratory ones are seen along the Ottawa, March 24th 

 (1908), and the remaining days of March, but during the first 

 half of April large flights can be seen ascending the river, the 

 last date for the spring migration being May 3rd (1908). The 

 return movement is heaviest in October and early in November. 



40. Charitonetta albeola, Buffle-head; Butter-ball. This 

 rotund little duck is a moderately common migrant. In the 

 flocks of migrating ducks usually a few of this species are seen, 

 as on April 17th, 1908, when Mr. E. Bedard saw five among 

 hundreds of other ducks at the Rifle Range. On October 22nd, 

 1906, Mr. N. Lachance saw nine on Shirley's Ba3\ among them 

 a fine adult male, one of the latter also being brought to the 

 market on the 26th of the same month. 



41. Harelda hyemalis, Old Squaw; Long-tailed Duck. An 

 abundant migrant from and to Hudson Bay and the far north. 

 The vanguard arrives about April 2nd, but from the 16th to 

 May 16th large flocks pass westward via the Ottawa, returning 

 during the end of October, well into November, on the 9th of 

 which (1905) a male was shot on Brewery Creek and presented 

 to the writer. 



42. Somateria dresseri, American Eider. A rare accidental 

 visitor, though it probably is sometimes overlooked. A young 

 male was shot by Mr. G. White on the Ottawa, November 9th, 

 1889. This is the only positive record so far. 



43. Somateria spectabilis, King Eider. This is another 

 northern marine species which now makes its appearance on the 



