WARBLERS 



(659) Dendroica pensylvanica 



(Linn.) 



CHESTNUT-SIDED WARBLER. 

 Ad. cf — Shown by the upper bird; 

 crown yellow; a V-shaped black patch 

 on side of head; a broad chestnut 

 stripe on the side; inner webs of outer 

 tail feathers with white; two yellowish 

 wing bars. Ad. 9 — Similar but 

 with little black on the face and little 

 or no chestnut on the sides; shown by 

 the middle bird. Int. — As shown by 

 the lower bird; yellowish-green above 

 and white below, with two yellow 

 wing bars. L., 5.00. Nest — Of 

 grasses and fibres; in bushes or weeds 

 near the ground. 



Range — Breeds from N. J., Ohio 

 and Neb. north to Newfoundland, 

 Ont. and Sask. Winters in Central 

 America. With us from May 5 to 

 Sept. 10. 



CERULEAN WARBLERS are very small blue-gray war- 

 blers found in summer chiefly in the Mississippi and Ohio 

 valleys. The range extends eastward regularly to central 

 New York and casually to southern New England. They 

 all apparently migrate down the big valley, leaving our coast 

 at Louisiana for their winter home in Central America, and 

 returning by the same route. They are almost unknown in 

 our South Atlantic States. 



They are typical wood warblers rarely coming within 

 twenty feet of the ground and more often being found in the 

 tops of the tallest trees. Their song is a simple little ascending 

 trill, like "tse, tse, tse, tse, zee-e-e-e-e-e-eep. " Their nests 

 are usually saddled on limbs thirty or more feet above ground. 

 The nest is made of gray fibres bound together with cobweb, 

 adorned with lichens and lined with hair or fine rootlets. 



Practically every second growth woodland and bush cov- 

 ered hillside in northern United States and southern Canada 

 is tenanted by the handsome yellow-crowned little warbler 



373 



