69 

 Counties it is fairly cominon. It may "be looked for pract- 

 ically anywhere in the state but is very locally distributed, 

 Along the Delaware River, however, especially in Delaware, 

 Philadelphia, and Bucks Counties, it is one of the most 

 abundant species, "breeding in the river marshes and there 

 outnumbering all the other birds. It also breeds quite 

 commonly along the Susquehanna and never seems to be an 

 abundant bird except in the river marshes. Some idea of the 

 abundance of this species may be given when I say that ?£r. 

 Richard P. Miller and myself have found as many as twenty- 

 six occupied nests in one day. 



537. Pipilo erythrophthalmus erythrophthalmus ( Linn . ) . 

 Towhee. 



The Chewirtk is another bird that is gradually 

 pushing its way northward as the big timber recedes. Form- 

 erly it was a rare bird in the Canadian fauna, nesting 

 commonly in the Carolinian and reaching its greatest abund- 

 ance in the Alleghanian. Now however, it breeds in every 

 county of the state, having become quite common in the 

 northern tier of counties. About Philadelphia, it is a 

 scarce breeder, preferring the dry, upland country to the 

 river valleys. In Green County, Mr. Dickey finds it common, 

 while Mr. Simpson writes me that it is quite common at Warren 

 in the slashings and bushy places. 



