CHECK LIST OF NEW YORK BIRDS 207 



21 (51) Herring gull 1 



Larus argentatus Briinn. 



22 (510) American herring gull 



Larus argentatus smithsonianus Coues 



23 (54) Ring-billed gull 



Larus delawarensis Ord 



24 (58) Laughing gull 



Larus atricilla Linn. 



1 Dr J. A. Allen writes me that this species Is occasional In winter in Long Island sound and 

 adjacent waters, and that several specimens taken in that locality and referable to this form have 

 come under his observation. 



