312 



KEY TO THE HIRD3 OF EASTERN NORTH AMERICA. 



FAMILY TROGLODYTID/E. 



Wrens and Thrashers. 



First primary, less than two thirds as long as third ; outer tail 

 feathers, decidedly shorter than middle ones, varying from one eighth 

 to one half inch or more shorter in different species. 



Group 1. Wing, less than 3.25 inches long. 



SUBFAMILY TROGLODYTIN/E. 

 Wrens. 



Small, brownish, plain colored birds. 



Part 1. The following species have the crown or back without white 

 streaks or dots : 



Tlirv.itlmi ii- lirwirkil. 



Oilier t:iil feathers, tipped ;mil marked 

 with grayish white: primaries, not 

 barred. Bewick's Wren. 



See No. 5:5S. 



Underparts, grayish; belly, grayish, not 

 speckled; outer tail feathers, not hroadly 

 tiplrtl with grayish whin-; tail, over 1.25 

 nit-hos long; primaries, sliowiu^ narrow liars. 



House Wren. 



,iml 



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