89 

 two species of the Water-thrushes, Dr. Warren records it 

 as breeding in Bear meadows, Center County, but recent 

 investigations have shown all the Water-thrushes of that 

 locality to be the Louisianian. In the northern tier of 

 counties from Monroe to Warren, it nests regularly and south 

 thru Sullivan, Lycoming, Clearfield, and Clinton Counties 

 but seems always scarce as a nesting bird. 



676. Seiurus motacilla ( Vieill . ) . Louisiana Water-thrush. 



Formerly this shy bird was supposed to be limited 

 to the Carolinian fauna in this state, but recent observations 

 have shown it to have an extended range. In southeastern 

 Pennsylvania, it is a rare bird, tho several sets have been 

 taken along the Wissahickon Creek in Philadelphia County, 

 and recently breeding birds have been observed at Swarthirore, 

 Delaware County, and West Chester, Chester County. In the 

 lower Susquehanna Valley it is a common bird, while in the 

 southwestern counties it is very abundant, nesting north 

 rarely to Venango and Crawford Counties but not being found 

 in Warren, Elk, or Forest Counties. In the central mountain- 

 ous regions it is an abundant nesting bird in Huntingdon, 

 Center, and Mifflin Counties, also north along the Allegha*- 

 ies and up the Susquehanna and Delaware Valleys to Pike, 

 Monroe, and Wayyie Counties, where it summers commonly in 

 company with the Northern Water-thrush. 



