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Marila affinis Lesser Scaup Duck 
One of the commonest of breeding ducks. The centres of some of the 
smaller lakes in June and July are often black with masses of young ducks. 
The majority of these were Scaups. 
Marila collaris Ring-necked Duck 
Recognized with certainty only once, June 21, on one of the smaller 
lakes, but several times the party saw birds which they referred to this 
species and though its nest has never been actually identified they believe 
that it is a regular though probably scarce breeder. 
Glaucionetta clangula American Golden-eye 
A common nester. Henderson has several artificial bird-boxes scat- 
tered about his place and several of them are regularly occupied for nesting 
by Golden-eyes. 
Charitonetta albeola Buffi ehead 
A common breeder. It is astonishing how small a hole it will enter 
for purposes of nesting. Some of the nests occupied by them were old 
Flicker nests with openings that seemed no larger than normal for that 
species. 
Clangula hy emails Old-squaw 
Reported by Henderson as a regular spring and autumn migrant, but 
not noted by us. 
Oidemia deglandi White-winged Scoter 
Large numbers of mixed sexes occupied the open waters of large lac La 
Nonne on the party’s arrival. The first week in July the females seemed 
to retire from these gatherings and nests with complements of eggs were 
found. About the same time the males grew scarcer and were seen passing- 
over westward and away from the lake in large, regular flocks as if on pass- 
age. After July 26 practically no males were to be seen and only occa- 
sional females skulking in the reeds were noted until the migrants arrived 
in August and September. 
Oidemia perspieillata Surf Scoter 
Considerable numbers were on the open waters of lac La Nonne on 
the arrival of the party, but none was seen after May 26. Henderson 
reports four on a small lake in Fort Assiniboine region June 8, 1925. 
Erismatura jamaicensis Ruddy Duck 
A very common breeder. 
Chen hyperboreus Snow Goose 
From fifty to two hundred Snow Geese noted by Laing, October 10 
to 13. These were undoubtedly Lessers C. h. hyperboreus. 
Anser albifrons White-fronted Goose 
Noted with question mark by Laing and Harrold September 7. These 
were almost certainly A. a. albifrons as gambeli has only been certainly 
identified from the California coast. 
