1/4 THE CHICAGO ACADEMY OF SCIENCES. 



return southward through the states of the Atlantic coast. It 

 winters, so far as is known, in the Bahamas and in northern 

 South America. 



Oporornis Philadelphia (Wilson). Mourning Warbler. 



Sylvia Philadelphia WILSON, Amer. Orn., II, 1810, 101, pi. 14, fig. 6. 

 Trichas Philadelphia JARDINE, ed. Wilson's Amer. Orn.,, I, 1832, 249. 

 Geothlypis Philadelphia BAIBD, Rep. Pacific R. R. Surv., IX, 1858, 243. 

 Oporornis Philadelphia RIDGWAY, B. of N. & Mid. Amer., Bull. U. S. 



Nat. Mus., No. 50, pt. ii, 1902, 628. 

 Popular synonym : BLACK-THROATED GROUND WARBLER. 



The Mourning Warbler is a rather rare migrant, arriving 

 about the same time, and may be found in about the same local- 

 ities as the Connecticut Warbler. At the present time this species 

 is becoming more abundant than it has been, particularly in the 

 city parks of Chicago. 



The range of the Mourning Warbler covers North America, 

 east of the Great Plains. It breeds from the northern portion 

 of the United States, especially in the higher altitudes, northward. 

 It winters in southern Mexico, Central America and northern 

 South America. 



Oporornis tolmiei (J. K. Townsend). Macgillivray's Warbler. 

 Sylvia tolmiei J. K. TOWNSEND, Narrative, April, 1839, 343. 

 Geothlypis macgillivrayi BAIRD, Rep. Pacific R. R. Surv., IX, 1858, 



244. 



Geothlypis tolmiei STONE, Auk, XVI, Jan., 1899, 82. 

 Oporornis tolmiei RIDGWAY, Bull. U. S. Nat. Mus., No. 50, ii, 1902. 



631. 



In the Catalogue of Birds in the British Museum, Professor 

 R. Boulder Sharpe records a specimen of the Macgillivray's 

 Warbler from our region, collected by Mr. H. K. Coale. 



Mr. Coale informs me that the specimen was taken by himself 

 at Wolf Lake, Indiana, on June i, 1879. 



In his "Birds of North and Middle America,"* Mr. Ridgway 

 gives the following as the range of this Warbler: "Western 

 United States and British Columbia ; breeding in mountains from 

 Pacific coast ranges to Rocky Mountains, north to British Colum- 

 bia (including Vancouver Island), south at least to Arizona, New 

 Mexico, and western Texas; during migrations east to western 

 Nebraska, central Texas, etc. ; south in winter to Cape St. Lucas 

 and over whole of Mexico and Central America to Colombia." 



*Bull. U. S. Nat. Mus. No. 50, pt. ii, 1902, 632. 



