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regularly follows the Herring Gulls into the harbor. 

 Mr. Charles H. Rogers reports it from the Liberty- 

 Street Ferry on three occasions during the end of 

 January, and the writer saw one on February 12 on 

 the River near 130th St. 



7. Lams argentatus. Herring Gull. — Abundant every- 



where near the city where there is open water. 

 Common up the River as' far as Yonkers, where its 

 numbers rapidly decrease. Mr. Miller reports having 

 seen it on three occasions in the vicinity of Plainfield, 

 flying overhead. 



8. Larus delawarensis. Ring-billed Gull. — There is no 



longer any doubt that this species winters occasionally 

 off Long Island, although most of the reports by ob- 

 servers are unquestionably immature Herring Gulls. 

 The writer knows of no field marks by which this 

 species can be satisfactorily identified. Comparison 

 of size under favorable circumstances is the only 

 means of being certain without a gun. There are 

 two satisfactory records for last winter made by 

 those who have been acquainted with this bird for 

 many years: Manhattan Beach, L. I., 3, December 

 21 (Wiegmann, Hix, and Griscom); Long Beach, 2, 

 January 5 (Johnson and Griscom), 



9. Larus Philadelphia. Bonaparte's Gull. — Commoner 



during December than usual, but none observed 

 during midwinter. 

 10. Sula bassana. Gannet. — The Gannet was one of 

 those species "which spent the winter with us owing 

 to the mildness of the weather. The records are as 

 follows: Long Beach, December 22, one adult 

 (Harper, LaDow, and Griscom); January 5, one 

 adult (Johnson and Griscom); Fishing Banks off 

 Seabright, N. J., December 28, 30 adults (Wiegmann, 

 Miller, and Rogers). Mr. John Treadwell Nichols, 

 during a voyage to Cuba and back in late January 

 and early February, observed Gannets in numbers 

 as far north as Sandy Hook. Ninety per cent were 

 adults. 



