JAN., 1909. BIRDS OF ILLINOIS AND WISCONSIN CORY. 657 



write: "A few nest regularly in the state, even in the southern coun- 

 ties, most often in the tamarack swamps. Eggs have been taken in 

 Jefferson County and young in Manitowoc County (L. K.)." (Birds 

 of Wisconsin, 1903, p. 114.) 



The nest is usually in evergreen trees, composed of plant fiber, 

 moss, grass, and horse-hair. The eggs are 4, greenish white, spotted 

 and marked with shades of brown chiefly around the larger end, and 

 measure about .69 x .50 inches. 



320. Dendroica dominica albilora (Rioow.). 



SYCAMORE WARBLER. 



Distr.: Mississippi Valley region, west to the Plains, north to 

 southern Wisconsin and southern Michigan, east to the Alleghany 

 Mountains, south in winter to Mexico and Central America to Costa 

 Rica ; breeds nearly throughout its United States range from Illinois 

 and Ohio southward. 



Adult male: Upper parts, ashy gray; throat, bright yellow; rest 

 of under parts, white, streaked with black on the sides; belly, white, 



without streaks; forehead (some- 

 times greater portion of crown 

 also), black; a white superciliary 

 stripe, sometimes tinged with yel- 

 'low near nostril; a white patch on 

 sides of neck; lores, cheeks, and 

 sides of throat, black; middle and 

 greater wing coverts tipped with 

 white, forming wing bands; ter- 

 minal portion of inner webs of 

 three outer tail feathers marked with white. 



Adult female: Similar, but the yellow throat somewhat paler. 

 Immature in jail: Similar to the female, but back tinged with 

 brown, and under parts, brownish white. 



Diagnostic characters in any plumage: Throat, yellow; belly, 

 white; back, gray or brownish gray, never green or greenish. 

 Length, 5; wing, 2.60; tail, 2; bill, .50. 



The Sycamore Warbler is a common summer resident in southern 

 Illinois, frequenting heavily timbered regions where sycamore trees 

 are found It is rare in northern Illinois and an accidental straggler 

 in Wisconsin. 



Mr. Frank M. Woodruff records an adult male in the collection 

 of Mr. T. H. Douglass, taken at Waukegan, 111., in the spring of 1876. 

 (Birds Chicago Area, 1907, p. 164.) 



