205 
1872. 
Mar. 27. 
1876. 
Apr. 18. 
Bucephala americana. 
Examinod about a hundred v/histlor from the Quebec 
rapids, Cai.ada, At least 90 per cent of them were adult 
males, some, hov/ever, shov/ing traces of brovm in the 
green of the head. The remaining ten percent wore most 
ly immature males, there being only tv/o females in the 
entire lo%. There was not a single M. islandica among 
them. 
fly 
Rather numerous hero. They higher above the sea 
than any other folw hero and may be easily distinguished 
by their conspicuously largo heads and rapid vang beats. 
(Pt.Lopreaux.N.B.). 
