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761. Planesticus migratorius migratorius ( Linn . ) . Robin. 



The Robin is probably the best known as well as 

 the best loved bird occuring within the state, where it 

 nests abundantly in every county. It is especially common 

 in the farming districts and in the suburban villages and 

 parks. 



766. Sialia sialis sialis :(Linn.). Bluebird. 



The Bluebird, tho still a comnon breeder in many 

 localities, seems to be steadily decreasing as one of our 



summer birds. It still nests regularly in every county of 



the 

 the state but especially in A Delaware Valley. and Central Penn- 

 sylvania, and is now almost rare where years ago it was 

 abundant. Mr. Dickey tells me that the Bluebird is still a 

 common bird in the southwestern counties, but in Warren 

 County, Mr. Simpson has noticed that it is growing scarce. 



Passer donesticus domesticus ( Linn . ) . English Sparrow. 

 This European pest has spread thruout the state 

 till it is now abundant even in the remote mountain counties, 

 breeding in great numbers about practically every town, 

 village, and city and increasing despite persecution. 



