14 CHECK LIST OF THE 
Adult specimens of this duck in full plumage have several times 
been taken on our lakes in the late autumn and early spring. 
GENusS OIDEMIA. 
Susgenus OIDEMIA. 
54, Black Scoter—(American Scoter.) 
(Oidemia americana.) 
A regular winter resident on the great lakes, sometimes moving 
southward for a short time if the weather is very severe. 
SuspcEeNus MELANITTA. 
55. White-winged Scoter. 
(Oidemia deglandi.) 
A common winter resident, frequenting the great lakes. 
Suscenus PELIONETTA. 
56. Surf Scoter. 
(Oidemia perspicillata.) 
A regular visitor to our lakes in spring and autumn, probably 
remaining through the winter, though I have never observed it here 
in the coldest part of the season. 
Genus ERISMATURA. 
57. Ruddy Duck. 
(Erismatura jamaicensis.) 
Common in spring and autumn. Breeds from our southern bound- 
ary northward. 
SuBFAMILY ANSERIN 4. 
Genus CHEN. 
58. Greater Snow Goose. 
(Chen hyperborea nivalis,) 
A rare visitor to the Western part of this Province. 
Genus ANSER. 
59. White fronted Goose. 
(Anser albifrons gambeli.) 
Oi very rare occurrence. 
