Nests in Trees, Bushes, or Vines 



659. Chestnut-sided Warbler: Dendroica pensylvanica 

 (Linn.) 



Adult Upper parts greenish, streaked with black ; crown yellow; 

 a black line from base of bill on sides of throat to upper part 

 of breast, where it joins the chestnut patch on either side of the 

 breast and belly; rest of under parts whitish. Length 5. 14. 



Breeding Range. In the Alleghanies, northward from South Can> 

 lina, and from northern New Jersey and Illinois northward. 



The nest is placed in low bushes at a height from eighteen 

 inches up to seven or eight feet. It is a fairly compact nest, about 

 an inch and a half deep inside, composed of grass, thin strips of 

 bark, a small amount of plant fibre, and lined with fine grass, 

 hair, and hair-like roots. Seldom more than 4 eggs are laid; they 

 are white, with light reddish-brown and pale lavender spots, most 

 of which form an irregular wreath round the larger end. Size 

 .68 x .50. See Fig. 15, Plate D. 



The Chestnut-sided Warbler arrives at the southern portion 

 of his lowland range (New Jersey) about the first week in May, 

 and he and his mate, who lacks but little of the brilliancy of his 

 colouring, choose some suitable place, such as the scrubby second 

 growth of a clearing, or near a brook where the underbrush is 

 thick, and there they remain until time for nest-building, which 

 begins about the last week in May. During this period and for 

 about a month or so after, the sweet note of the male bird may 

 be heard at almost any time of day. While his mate is perform- 

 ing the tedious duty of incubating, he remains near by and sings 

 at frequent intervals. The accompanying photograph was taken 

 in South Orange, New Jersey, the nest being placed within eigh- 

 teen inches of the ground, in an azalea plant. 



66O. Bay-breasted Warbler: Dendroica castanea 



(Wils.) 



Adult $ Upper parts ashy gray or brownish, streaked with 

 black ; crown chestnut ; forehead and cheeks black ; two 

 white wing bars ; tail tipped broadly with white. Under 

 parts, throat, breast, and sides reddish chestnut ; lower part 

 of breast and belly white. 



Adult 9 Less brilliant and with less chestnut, especially on the 

 crown, which is a mixture of greenish and rufous. Length 

 5.63. 



'59 



