ROUGH-WINGED SPARROW. 
617. Stelgidopteryx serripennis. 5% inches. 
This species is about the same size as the last, and similar, 
but with the throat and breast grayish in place of the white. 
The outer webs of the outer primaries are recurved, forming 
a series of hooks. It nests in holes of embankments or in the 
crevices of cliffs, or among the stones of bridges and build¬ 
ings. Their eggs are four in number and are pure white 
(.75x.52). The range of these birds covers the whole of 
the United States, breeding from Mexico to British Columbia. 
BOHEMIAN WAXWING. 
618. Bombycilia garrula. 8% inches. 
A northern variety, breeding in Alaska and northward, win¬ 
ters to California and the northern states of the United 
States. It may be identified from the following by the 
markings on the wings of white and yellow, and the larger 
band of yellow at the end of the tail. The wax-like appen¬ 
dages on the wings and tail may be found on both species. 
Their nests are made of rootlets, grass and moss, and placed 
in bushes or trees at a few feet from the ground. Usually 
four eggs are laid, of a grayish color, sharply spotted with 
brown (.95x.70). 
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