46 PROCEEDINGS OP THE 



October, 1893, on a mill dam at Cedar Grove, Philadelphia, 

 five miles from the Delaware. 



Mr. Miller states that one was observed by his brother at 

 Sandiford, Philadelphia, February 28, flying very low. He 

 also furnishes the following dates, based on his observations at 

 Frankf ord : 



Arrival: October 19, 1898; September 19, 1901; November 

 13, 1902; October 24, 1903. 



Departure: June 2, 1897; April 3, 1899; April 16, 1900; May 

 5, 1901; May 8, 1902; May 2, 1903. 



Lams delawarcnsis. Ring-billed Gull. 



Rarely observed. Mr. S. N. Rhoads observed them from the 

 Market Street Ferry, at Philadelphia, between the 17 and 27 

 of February, 1895, but they appeared much more abundant 

 after the ice had broken up. The same remarks apply to the 

 Herring Gull. 



Lams atriciUa. Laughing Gull. 



Most abundant during the spring and fall, seldom wandering 

 any distance from the river. During the late spring they hover 

 about the shad and herring fishermen. At this time they have 

 been seen attempting to devour freshly-killed herring, which 

 examination proved to he the adult Alewiie (Pomolobus pseudo- 

 harengus). Possibly they also attempt to devour other dead 

 fish, such as the Catfish {Ameiurus catus) and Perch {Morone 

 americana), which are occasionally observed floating on the 

 water. I have not observed them devouring living fishes. Two 

 were taken at Bristol, October 23, 1895, and one at Fish House, 

 N. J., fall of 1901 (Miller). 



Sterna sp. 



Mr. Miller also reports a tern of some species observed by a 

 reliable gunner, but it was not secured. 



Phalacrocorax dilophus. Double-crested Cormorant. 



This bird has been frequently seen during migrations about 

 Burlington Island, where two specimens were captured. 



Merganser americanus. American Merganser. 



Abundant and locally known as Irish Canvas-back. Also 

 seen in small creeks. I have seen them along the Pennypack, 

 hugging the shelter of coves and shallow pools protected by 



