26o DwiGHT, The Philadelphia Vireo. Yl^y 



Costa Rica, and during the migration ranges over the eastern 

 United States, being most abundant in the Mississippi Valley. 

 Its breeding range probably covers a large part of Canada east 

 of the Rocky Mountains and a few adjacent portions of the 

 northernmost United States. Breeding specimens have been 

 recorded from New Brunswick (Edmundston), Quebec (near 

 Ottawa), Ontario (Moose Factory), Manitoba (Winnipeg), and 

 Assiniboia (Fort Pelly), the last the westernmost record; also 

 from Maine (Lake Umbagog), New Hampshire (White Moun- 

 tains), Indiana (Carroll County), Illinois (Chicago), Minnesota 

 and Dakota (Red River Valley), and Nebraska (Lincoln), the last 

 the westernmost record in the United States. There is at present 

 no good evidence of the occurrence of the species, except as a 

 migrant, in Michigan, Wisconsin, and Iowa, where it is to be 

 expected, for it has been recorded as breeding in the adjacent 

 States. Numerous other records need hardly occupy space here 

 for they have received ample treatment elsewhere and have 

 served me only as a basis on which to build the brief summary 

 of facts here presented. 



Mr. Brewster was the first to acquaint us with the social side of 

 the Philadelphia Vireo, and it is largely from this point of view 

 that I now wish to consider these modest little birds, dragging them 

 again before the public after they have conducted their domestic 

 affairs quite undisturbed for the last sixteen years. I feel on 

 terms of considerable intimacy with them for I have cultivated 

 their acquaintance during portions of four summers spent among 

 them near the little village of Tadousac, Province of Quebec, 

 Canada, where I have found them to be rather common. My 

 experience with them has been very much like Mr. Brewster's 

 and consequently my remarks must of necessity be somewhat in 

 the nature of a postscript to his graphically penned observations. 



It was on the loth of July, 1893, that a Philadelphia Vireo 

 introduced herself to notice by scolding me most unceremoniously, 

 — at least I took it to be a female and one just off the nest, from 

 the way she kept ruffling and picking at her feathers and shaking 

 herself as many birds do when disturbed from their eggs. Still, 

 no nest could be found, nor was my lady anywhere about at later 

 visits to the same spot. However, profiting by the fact that I had 



