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64 THE ARCHITECTURE OF BIRDS. 
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NIN 
GAZ 

Nest of the Bulfinch (Pyrrhula vulgaris, Brisson). 
The celebrated American mocking-bird (Orpheus 
polyglottus, Swains.) makes its nest of similar ma- 
terials, though it would appear from the description, 
as well as from Audubon’s beautiful figure, to be a 
more substantial structure. ‘‘The precise time,” 
says Wilson, “at which the mocking-bird begins to 
build his nest, varies according to the latitude in 
which he resides. In the lower parts of Georgia 
he commences building early in April; but in Penn- 
sylvania rarely before the 10th of May; and in New- 
York and the states of New-England still later. 
There are particular situations to which he gives 
