Jax., 1909. Birds of Illinois and Wisconsin — Cory. 



67 1 



Length, 5.50; wing, 2.50; tail, 2.20; bill, .^^^. 



The Mourning Warbler is not uncommon during the migrations 

 in spring and fall in Illinois and W^isconsin, and is a summer resident 

 in the northern part of the latter state. Although I know of no record 

 of the eggs having actually been taken in Wisconsin, Mr. John F. 

 Ferry observed two different parent birds feeding their young in 

 different localities and procured specimens near Woodruff, Vilas 

 County, on Jttly 7, 1908. 



Macgillivray's Warbler, Oporoniis tohniei, a \vestern species, is 

 recorded as ha\-ing been taken by Mr. H. K. Coale at Wolf Lake, 

 Indiana, June i, 1876, a few hundred yards from the Illinois state 

 line, and, therefore, not strictly within our limits. The specimen is 

 now in the British Museum (Sharpe, Cat. Birds Brit. Mus., Vol. X, 

 1885, p. 365). 



Genus GEOTHLYPIS Caban. 



332. Geothlypis trichas (Linn.). 

 Maryland Yellow-throat. 



Distr.: North America, from the western portion of the Great 

 Plains eastward, north to Athabaska, Hudson Bay, and southern 

 Labrador; breeds from Virginia and Tennessee northward and per- 

 haps farther south ; winters from the Gulf states southward to the 

 Bahamas, Greater Antilles, Mexico, and Central America to Costa 

 Rica. 



Adult male in summer: A broad mask-like black band on front 

 and sides of head, bordered behind by pale ash; upper plumage, dull 



Maryland Yellow-thioat. 



olive green, often with faint brownish tinge on the crown; throat, 

 breast, and under tail coverts, yellow; belly, whitish; sides of body 



