CHESTNUT-SIDED WARBLER. 
659. Dendroica pensylvanica. 5 inches. 
Yellow crown, black line through eye and on side of 
throat, and broad chestnut Stripe on sides; female, 
paler and with less chestnut ; young greenish yellow 
above and with no chestnut. 
Nearly every Swamp or bush-covered pasture within 
their range shelters one or more pairs of these Warb- 
lers. While they sometimes feed in the tree tops, they 
are birds of the lower foliage and are usually seen in 
low bushes. 
Song.—Similar to that of the Yellow Warbler but 
more choppy. 
Nest.—In low bushes or weeds, and often in sweet 
fern or briars: similar to that of the Yellow Warbler 
but coarser, being made more with grasses than with 
fibres, situated in upright forks or attached to several 
weed stalks; egos white, specked around the large end 
with reddish brown (.68 x .50). 
Range.—Eastern N. A., breeding from New Jersey 
and Ohio north to Manitoba and New Brunswick; win- 
ters south of U.S. 
