PASSERES MNIOTILTID^E. 193 



271. (685.) WILSONIA PUSILLA (Wils.). 63. 



Wilson Warbler. 



Synonyms: Myiodioctes pusillus, Sylvia wilsonii, Muscicapa 



pusilla. 



Green Black-capped Fly-catching Warbler, Green Black-cap- 

 ped Yellow Warbler, Wilson's Black-cap, Black-capped 

 Yellow Warbler. 

 Kirtland, Ohio Geol. Surv., 1838, 163, 182. 



Wilson Warbler is strictly migratory, passing completely 

 across the state both spring and autumn. Dr. Wheaton said 

 of it, "Not common migrant in spring ; abundant in fall." I 

 have never found it common at Oberlin in spring, and even 

 less numerous in fall. Its numbers appear to have decreased 

 since Dr. Wheaton's time. It may be found in the shrub- 

 bery of woods, or even well up in the trees, when migrating. 

 I have found it in orchards not infrequently, in company 

 with the other migrating host of warblers. 



This warbler is usually rather late in putting in an ap- 

 pearance, but the fact that it is sometimes recorded late in 

 April argues that it may well be placed with the group of 

 warblers which arrive about May 1. It passes north about 

 May 20, and returns early in August, to remain three 

 weeks or more. 



272. (686.) WILSONIA CANADENSIS (Linn.). 64. 



Canadian Warbler. 



Synonyms: Myiodioctes canadensis, Sylvia pardalina, Sylvicola 



pardalina, Muscicapa canadensis. 



Canada Fly-catching Warbler, Canadian Fly-catching Warb- 

 ler, Speckled Canada Warbler, Necklaced Warbler, Cana- 

 da Flycatcher. 

 Kirtland, Ohio Geol. Surv., 1838, 163, 181. 



The Canadian Warbler should be found as a migrant 

 anywhere in the state, both spring and autumn. It is not as 

 numerous as many species, but is certain to be seen during 

 each migration if one be on the lookout for it. I have found 

 it more frequently in the higher woods than elsewhere, but 

 it also feeds in the shade trees and orchards. In the woods 

 it prefers the middle stories of the trees. 



