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Birds of Massachusetts. 139 
The Prae WansrER, Sylvia discolor, is a small 
and quiet, but fearless bird, which comes to us about 
the middle of May. Nuttall found one of their nests 
at Mount Auburn, in a low barberry bush, formed 
very much like the nest of the yellow-bird. The 
proprietor eyed him with much curiosity, but with- 
out any appearance of fear, and when he approached 
the nest, the female kept her station. There is con- 
siderable difference in the accounts given by him 
and Audubon, of the nest and the song of this bird. 
The latter describes the nest as covered with li- 
chens, like that of the humming-bird. The one 
found at Mount Auburn did not answer at all to his 
description. 
The Panri-coLonED WARBLER, Sylvia Americana, 
is not common, but several specimens have been ob- 
tained by Mr. Samuel Cabot, Jr., and as its song has 
been heard here as late as the close of May, there 
seems reason to believe that it sometimes breeds in 
the State. It comes in May and returns in October, 
on its way to its winter home in the West Indies. 
Few of the warblers are more beautiful than this. 
The Brack-rHRoATED BLUE WARBLER, Sylvia 
Canadensis, is a wayfaring and unfrequent visiter, 
which appears in April, on its way to the north, 
and returns late in the fall. It is not known where 
it rears its young. Its winter quarters are in the 
West Indian Islands. The Pine Swamp Warbler, 
Sylvia sphagnosa, is now believed to be the young 
of this species. 
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