THE NATURAL HISTORY SURVEY. 177 



southern Wisconsin southward. It breeds from Texas and the 

 Gulf of Mexico northward, and winters in the West Indies, east- 

 ern Mexico and through Central America to Panama. 



Wilsonia pusilla (Wilson). Wilson's Warbler. 



Mmcicapa pusilla WILSON, Amer. Orn., Ill, 1811, 103, pi. 26, fig. 4. 

 Sylvia wilsonil BONAPARTE, Journ. Acad. Nat. Sci. Philadelphia, IV, 



1824, 179. 



Wilsonia pusilla BONAPARTE, Geog. and Comp. List, 1838, 23. 

 Sylvania pusilla NUTTALL, Man., ed. 2, I, 1840, 335, part. 

 Myiodioctes pusillus BAIBD, Lit. Rec. and Journ. Linn. Assoc. Penn. 



Coll., I, Oct., 1845, 252. 

 Popular synonyms: WILSON'S BLACK-CAP. GREEN BLACK-CAPPED 



WARBLER. BLACK-CAPPED YELLOW WARBLER. 



Wilson's Warbler is a not uncommon migrant, arriving in the 

 spring during the month of May, and returning in the fall from 

 about the middle of August to the latter part of September. 



The range of the Wilson's Warbler extends over the eastern 

 portion of North America, east of the Great Plains and from 

 Newfoundland, Labrador, the shores of Hudson Bay and Mani- 

 toba southward. It breeds north of the United States and mi- 

 grates in winter through eastern Mexico into Central America. 



Wilsonia canadensis (Linnaeus). Canadian Warbler. 



Muscicapa canadensis LINN^US, S. N., ed. 12, I, 1766, 327. 



Sylvia pardalina BONAPARTE, Journ. Acad. Nat. Sci. Philadelphia, IV, 



1824, 179. 



Myiodioctes canadensis AUDUBON, Synop., 1839, 49. 

 Sylvania bonapartii NUTTALL, Man., ed. 2, I, 1840, 332. 

 Wihonia canadensis COUES, Bull. Nutt. Orn. Club, V, April 1880, 95. 

 Sylvania canadensis RIDGWAY, Proc. U. S. Mus., VIII, 1885, 354. 

 Popular synonyms : CANADA FLYCATCHER or WARBLER. BONAPARTE'S 



WARBLER. CANADIAN FLYCATCHING WARBLER. NECKLACED 



WARBLER. 



The Canadian Warbler is a not uncommon migrant, arriving 

 from the first to the last of May, and returning in the fall from 

 the middle of August to the middle of September. Mr. E. W. 

 Nelson records* it as a "rare summer resident." 



The range of this species covers North America, east of the 

 Great Plains and from Newfoundland and southern Labrador and 

 Manitoba southward. It breeds from Massachusetts, central 

 New York, northern Michigan and Minnesota northward, and 

 southward in the Alleghany Mountains to North Carolina. It 

 winters southward through eastern Mexico and Central America 

 to northern South America. 



''Birds of Northeastern Illinois, Bull, of the Essex Institute, Vol. VIII, 1876, 101. 



