377 004 SWINBURNE ISLAND, NEW YORK 



LOCATION: 

 ISLAND SIZE: 

 COLONY SIZE: 

 HABITAT: 



40° 34' N; 74° 03' W 



4 



4 



Island - man-made 



NEST SUBSTRATE: Rocks, grass - upland, shrubs 

 OWNERSHIP: Public - National Park Service 



NEST SUBSTRATE: Grass - upland, shrubs 

 OWNERSHIP: Public - National Park Service 



SPECIES 



Great Blk.-bk. Gull 

 Herring Gull 



DATE 



June 4 

 June 4 



NESTING PAIRS 



1 

 210 



INVENTORY METHOD 



Adult estimate - air 

 Adult estimate - air 



394 



