CHECK LIST OF NEW YORK BIRDS 207 
2t (47) Great black-backed gull 
Larus marinus Linn. 
22 (51) Herring gull! 
Larus argentatus Briinn. 
23 (51a) *American herring gull 
Larus argentatus smithsonianus Coues 
24 (54) Ring-billed gull 
Larus delawarensis Ord 
1Dr 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. 
