78 PROCEEDINGS OF THE ACADEMY OF [1898. 



feet, the Bobolink is an abundant breeder, also occurring locally at 

 many points in the central and eastern part of the county. 



As to the occurrence of several species of water birds during the 

 breeding season in Susquehanna County, I can state nothing posi- 

 tive, not having visited several of the more retired lakes and streams 

 in the northwestern portion of the county, where they would be 

 most likely to be found. 



To sum up, I think it may be said that the fauna of Susquehanna 

 County is largely Alleghenian, with a strong tinge of the Canadian, 

 but with practically nothing of what may be regarded as belonging 

 exclusively to the Carolinian element. To be sure, Dr. Warren 

 (Birds of Pennsylvania, p. 300) mentions having taken a Hooded 

 Warbler in the county during the summer months, while on August 

 10, 1895. I shot a pair of adult Prothonotary Warblers near Dim- 

 ock, but these species can hardly be regarded as more than strag- 

 glers. 



In the following list I have made no mention of the birds breed- 

 ing, as with few exceptions all the individuals noted during the last 

 of June and early part of July may reasonably be assumed to be 

 summer residents and to be breeding in the locality where seen. 



Such species as have not come under my personal observation or 

 whose status as breeders may be doubtful, have been placed in 

 brackets. 



Before concluding, I desire to express my thanks to Mr. Witmer 

 Stone, of the Academy of Natural Sciences of Philadelphia, who 

 visited the county in June 1896 and 1897, and who has rendered 

 valuable assistance in many ways. 



[1. Aix sponsa. Wood Duck. 



Formerly a common breeder in the more retired lakes and 

 streams, but now decidedly rare. A pair seen during the early part 

 of August, 1895, near a wild overgrown pond in the vicinity of 

 Dimock only points to the probability of its breeding]. 



2. Ardea herodias. Great Blue Heron. 



Rare. Scattered pairs occasionally seen along the larger streams 



throughout the county. 



ft 



3. Ardea virescens. Green Heron. 



Tolerably common, but like the last never found breeding in col- 

 onies, there being generally but a single pair in one locality. The 

 birds, however, show great partiality for the old breeding grounds, 

 and generally return to the same spot year after year. 



