THE BIRD BOOK 
650. Chestnut-sided Warbler. Dendroica 
660. Bay-breasted Warbler. Dendroica cas- 
tanea. 
Uhestnut-sided Warblers 
Bay-breasted Warblers 
White 
Range. — North America, east of the Plains, 
breeding from northern United States north to 
the Hudson Bay; winters in Central and South 
America. 
This species has the crown, throat and sides a 
rich chestnut; forehead and face black; underparts white. They 
nest in coniferous trees in swampy places, making their nests 
of bark shreds and rootlets and placing them in horizontal 
forks at elevations of from five to thirty feet from the ground. 
The three or four eggs are laid late in May or during June; 
they are white, usually quite heavily spotted and blotched with 
reddish brown, umber and grayish. Size .70 x .50. 
pensylvanica. 
Range. — United States, east of the Plains, breed- 
ing in the Middle States and Illinois, north to Man- 
itoba and New Brunswick. Winters south of our 
border. 
The adults of this handsome spe- 
cies may readily be known by the 
white underparts and the broad 
chestnut stripe on the flanks; the 
crown is yellow. They frequent low 
brush in open woods or on hillsides 
and pastures, nesting at low ele- White 
vations, usually below three feet from the ground, 
and often concealing their nests beneath the 
leaves in the tops of low small bushes. The nests 
are made of grasses, weed stems and some fibres, 
but they do not have as wooly an appearance as 
those of the Yellow Warblers which nest in the 
same localities and similar locations. Their eggs 
are white or creamy white (never greenish white), 
specked with brown and gray. Size .65 x .50. 
Data. — Worcester, Mass., June 6, 1890. Nest in 
the top of a huckleberry bush, 2 feet from the 
ground; made of grasses and plant fibres. Bird 
did not leave nest until touched with the hand. 
398 
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