280 PRAIRIE AND FOREST. 
The SouruERLy, as well as the dipper, are essentially sea- 
ducks, neither being found inland. The former doubtless 
derives its name from the notes it utters when calling to 
each other or when alarmed. In stormy weather they are 
particularly garrulous, and the notes “ Sou-southerly ” may 
be heard in every direction, as distinctly uttered as if by 
a human being, and the intonation is particularly musical. 
They also possess great beauty of plumage, the preponder- 
ating coloring being rich brown interspersed with white. 
They are a little larger than our teal; however, they are: 
tough and fishy, consequently little used for the table when’ 
other varieties can be obtained, so that, except in cases of 
necessity, the sportsman ought always to spare them. 
The WuistTLeEr is about the size of the former, but fuller 
in form. It is a dark, sombre bird, with a beautiful white. 
bar on each wing. They derive their name from a sharp. 
whistling sound emanating from each wing when in flight. 
Unlike the former species, they frequent the rapids and 
air-holes of rivers in severe frost; consequently are not, ' 
strictly speaking, sea-ducks. When in such haunts, they 
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