JAN., 1909. BIRDS OF ILLINOIS AND WISCONSIN CORY. 



6 39 



with black except on middle of the belly; greater and middle wing 

 coverts, broadly tipped with white, forming two conspicuous wing 



bands; wings, fuscous brown, the in- 

 ner secondaries edged with white; 

 middle tail feathers, blackish, edged 

 with gray ; outer tail feathers, bro&dly 

 marked with w r hite on terminal por- 

 tion of inner webs. 



Adult female: Similar, but paler 

 and with sides more or less tinged 

 with buffy brown. 



Length, 5.20; wing, 2.65; tail, 

 1.85 ; bill, .40. 



The Black and White Warbler is 

 very common during the migrations 



in Illinois and Wisconsin, and a summer resident in the latter 

 state, and may often be seen climbing about the trunks of trees 

 much in the manner of a Creeper. It is possible it may occasionally 

 nest in northern Illinois, but I find no record of its having done so, 

 although Mr. E. W. Nelson, in his Birds of Northeastern Illinois, 

 gives it as "not an uncommon summer resident." 



Regarding its occurrence in Wisconsin, Messrs. Kumlien and Hollis- 

 ter say (Birds of Wisconsin, 1903, p. 109) : "An abundant migrant, and 

 tolerably common summer resident. This species is one of the first 

 of the warblers to arrive, appearing in the southern part of the state 

 with the myrtle and palm warblers during the latter part of April. 

 It is common from then until close of the breeding season, when its 

 numbers are greatly diminished. On the southern migration it 

 begins to increase in numbers in August and is again abundant until 

 October." 



The nest is on the ground and carefully hidden. The eggs are 

 3 to 5, cream white, spotted and speckled with brown, chiefly around 

 the larger end, and measure about .67 x .56 inches. The song of 

 this species is a penetrating but rather faint, see, see, see, see. 



