324 054 BLACK ROCKS, MASSACHUSETTS 



LOCATION: 

 ISLAND SIZE: 

 COLONY SIZE: 

 HABITAT: 



42° 16' N; 70° 49' W 



<2 



<2 



Island - coastal 



NEST SUBSTRATE: Rock 

 OWNERSHIP: Private - individual(s) 



SPECIES 



Great Blk.-bk. Gull 

 Herring Gull 



DATE 



June 1 

 June 1 



324 055 BRUSH ISLAND, MASSACHUSETTS 



LOCATION: 

 ISLAND SIZE: 

 COLONY SIZE: 

 HABITAT: 



42° 15' N; 70° 48' W 



<2 



<2 



Island - coastal 



NEST SUBSTRATE: Rock 

 OWNERSHIP: Private - individual(s) 



NESTING PAIRS 



25 



155 



INVENTORY METHOD 



Adult estimate - air 

 Adult estimate - air 



SPECIES 



DATE 



NESTING PAIRS 



INVENTORY METHOD 



Herring Gull 



June 1 



26 



Adult estimate - air 



250 



