40 PROCEEDINGS OF THE 



Pied-billed Grebe, Podilymbus podiceps. Princeton, N. J,, 

 October 3-November 25 and March 13-A.pril 10 (Rogers); 

 Germantown, Phila., April 18 (Barker); Newtown, March 

 22 (Packer); Reading, August 25-October 29 (1 to 6) and 

 March 13-April 10 (Poole).* 



Horned Grebe, Colymbits auritus. Princeton, N. J., Novem- 

 ber 23 (1) (Rogers); Reading, April 16 (Poole). 



Loon, Gavia immer. Cape May Point, N. J., 150 to 200 

 April 10 (Hand); Princeton N. J., April 26, one flying over 

 (Rogers); Reading, April 9 and May 1 (Poole). 



Bonaparte's Gull, Larus Philadelphia. Princeton, N. J., May 

 6 (1 after N. E. storm) (Rogers); Camden, N. J., April 25 (2) 

 and October 4 (many) (Miller). 



Ring-billed Gull, Larus delawarensis. Bellingsport, March 12 

 (a few) (Miller). 



Herring Gull, Larus argentatus. Princeton, N. J., November 

 21-March 2, irregular (Rogerij); Frankford, Phila., November 

 3-May 11 rare after April 15 (Miller); Stone Harbor, N. J., 

 January 26 (2); July 3 (10), July 17 (12), all immature 

 (Miller); Chester, May 15 (2) (Miller); Swarthmore, April 13 

 (2) (Palmer); Wayne, March 6 (4) (Alexander). 



Laughing Gull, Larus atricilla. Cape May, April 17 (Hand); 

 Atlantic City, N. J., May 8 (Cromie); Philadelphia on the 

 Delaware, May 15-19 and September ll-October 11 (Miller). 



Least Tern, Sterna antillarum. Cape May Point, N. J. , May 

 30, several (Miller). 



Black Tern, Chlidonias nigra surinamensis. Reading, August 

 8-9, 1920 (Poole). 



American Merganser, Mergus americanus. Princeton, N. J., 

 November 23-December 24 and March 2-13 (Rogers); Reading, 

 February 19 (3) (Poole). 



Red-breasted Merganser, Mergus serrator. Cape May, N. J., 

 April 17 (Hand). 



Hooded Merganser, Lophodytes cucuUatus. Princeton, N. J., 

 November 21-23 immature and an adult December 24 

 (Rogers). 



Mallard, Anas platyrhychos. Princeton, N. J., October 31 

 (1) and April 3 (4) (Rogers); Pennsville, N. J., a pair, May 

 15 (Miller). 



* Localities in Pennsylvania and dates in 1921, unless otherwise indicated. 



