THE NATURAL HISTORY SURVEY. 169 



Manitoba southward to the Bahamas and the Gulf of Mexico. 

 It breeds nearly throughout its range and winters chiefly south 

 of latitude 40. 



Dendroica palmarum (Gmelin). Palm Warbler. 



Motacilla palmarum GMELIN, S. N., I., ii, 1788, 951. 

 Dendroica palmarum BAIBD, Rep. Pacific R. R. Surv., 1858, 288. 

 Popular synonyms : YELLOW RED-POLL WAEBLEB. WAGTAIL WABBLEB. 

 TITLABK WAEBLEE. TIP-UP WAEBLEB. RED-POLL WAEBLEB. 



The Palm Warbler is an abundant migrant, arriving in the 

 spring from the twenty-first of April to the twenty- fourth of 

 May, and returning in the fall from the tenth of September to 

 the middle of October. It is more common in the spring than 

 in the fall. 



The range of this Warbler extends over the interior of North 

 America, from the Great Slave Lake southward, in winter, to 

 the south Atlantic and Gulf states, the West Indies and Mexico. 

 It breeds chiefly north of the United States- 



Dendroica discolor (Vieillot). Prairie Warbler. 



Sylvia discolor VIEILLOT, Ois. Amer. Sept., I, 1807, 37, pi. 98. 

 Dendroica discolor BAIRD, Rep. Pacific R. R. Surv., IX, 1858, 290. 

 Popular synonym : CHESTNUT-BACKED YELLOW WABBLEB. 



The following are the only records that I have found regard- 

 ing the occurrence of the Prairie Warbler within our limits. 

 Mr. E. W. Nelson says:* "A very rare spring and summer 

 visitant, perhaps breeding. But very few specimens have been 

 taken in the vicinity of Chicago. Dr. Hoy writes that he knows 

 of but one instance of its capture in Wisconsin." Mr. George 

 Clingman informs me that he took a pair at Bryn Mawr, Chicago, 

 during the second week of June, 1878. He also took a nest and 

 eggs of this species at Forty-eighth Street and Vincennes Avenue, 

 Chicago, on May 22, 1892. 



The range of the Prairie Warbler covers the United States 

 east of the Great Plains, and from southern Wisconsin, Michigan 

 and southern New England southward. It breeds nearly through- 

 out its range in suitable localities, and winters in southern 

 Florida and the West Indies. 



Genus SEIURUS Swainson, 1827. 



Seiuros aurocapillus (Linnaeus). Oven-bird. 



Motacilla aurocapilla LINN^US, S. N., ed. 12, I, 1766, 334. 



*Birds of Northeastern Illinois, Bull, of the Essex Institute, Vol. VIII, 1876, 100. 



