CHESTNUT-SIDED WARBLER 



191 



Nesting-Site. Throughout its range this species appears to nest 

 in low bushes, saplings or briers, at from one to six, but usually 

 about two feet from the ground. 



Nest. The nest is externally rather roughly made of coarse 

 grasses, strippings of weed-stalks, plant fibers, bunches of spiders' web- 

 bing, and some plant down, finely and thickly lined with brown root- 

 lets, grasses and horse-hair. 



Eggs. 4 or 5, usually 4, rarely 5. Ground color white to creamy 

 white, beautifully marked, in most cases, with chestnut, varying shades 

 of brown, lavender, and purplish brown and blackish, either in the 

 form of a wreath or a conglomerate mass of spots on large end there 

 being very few scattering spots over rest of egg. Some specimens 

 of the egg of this species closely approach many eggs of the Yellow, 

 Magnolia, Myrtle, and Prairie Warblers. Size ; average ,66x.49 ; 

 extremes measure .6ix.47, .7ix.5i, .66x46 and .69X.52. (Figs. 57-59.) 



Nesting Dates. New York City, May 29 two broods, one day 

 from nest. (F. M. C.) ; New Haven, Conn., May 23-July 22, young 

 just out of nest. (Bishop) ; Cambridge, Mass., full sets, first laying, 

 May 26- June 5 (Brewster) ; Lancaster, N. H., May 26- June 6 

 (C. W. C.) ; Bangor, Me., June 4- July 4 (Knight) ; Listowel, Ont, 

 May 2i-June 18 (Kells) ; Ann Arbor, Mich., May 20 (Wood). 



BIOGRAPHICAL REFERENCES 



(i) W. L. KELLS, Nesting of the Chestnut-sided Warbler, (in Ontario), 

 Oologist, IV, 1887, ii ; Ottawa Naturalist, XV, 1902, 225. (2) CHARLES L. 

 PHILLIPS, The Chestnut-sided Warbler (at Taunton, Mass.), Oologist, IX, 1892, 

 165. (3) MORRIS GIBBS, Nesting Habits of the Chestnut-sided Warbler (in 

 Mich.), Oologist, XI, 1894, 331- (4) L- M. TERRILL, Summer Warblers in 



