55 

 Carlisle. To the southoof Philadelphia, I have taken its 

 nests on the Tinicum Meadows, while several pairs breed in 

 the parks and squares in the very heart of Philadelphia. 

 Several sets have been taken along the Brandy-wine Creek in 

 Chester County, while Mr. Miller has also collected its eggs 

 about Philadelphia. It seems to be slowly extending its 

 range farther up the river valleys. 



493. Sturnus vulgaris Linn . Sterling. 



The Sterling is another example of an introduced 

 species that has apparently come to stay. Previous to 1907, 

 they were unknown as breeders in this state, but since 1908 

 especially, they have spread until they are becoming common 

 nesting birds thru many sections of Philadelphia, Montgomery, 

 Bucks, Delaware, and Chester Counties. It is only reasonable 

 to believe that within the next ten years, this bird will 

 spread over practically the entire state. 



494. Dolichonyx oryzivorus ( Linn . ) . Bobolink. 



The Bobolink is a regular breeder thruout a. large 

 part of northern central and eastern Pennsylvania. In the 

 northern tier of counties especially Erie, Warren , Crawford , 

 Tioga, Bradford, and Susquehanna, it breeds commonly but 

 always locally. In the larger part of Pike, Monroe, and 



