314 THK NATURALIST OF THE ST. CROIX 



Black Skimmer. Rhynchops nigra Linn. Accidental ; 

 down the bay. 



Ivory Gull. Pagophila alba (Ckww.). Accidental; 

 Grand Manan. 



Bonaparte's Gull. Larus Philadelphia (6>r</). Very 

 abundant ; none breed. 



Sabine's Gull. Xema sabinii (^a/5.). Eastport ; acci- 

 dental in bay. 



Gull-billed Tern. Sterna nilotica {Hasselq.). Acci- 

 dental in bay. 



Caspian Tern. Sterna caspia Pallas. Seen in migra- 

 tions; rare. 



Common Tern. Sterna hirundo Linn. Abundant. 



Arctic Tern. Sterna paradis8eai5r?V«n. Abundant. 



Least Tern. Sterna antillarum (Z,<?.y5.). Accidental; 

 Grand Manan. 



Kittiwake Gull. Rissa tridactyla (ZzVzw.). Abundant 

 fall and winter. 



Glaucous Gull. Larus glaucus {Bninn.). Rare; 

 only found in winter. 



White-winged Gull. Larus leucopterus Faber. Rare ; 

 only found in winter. 



Great Black-backed Gull. Larus marinusZmw. Win- 

 ter bird ; few breed. 



Herring Gull. Larus argentatus i5r?<«w. Common; 

 resident. 



Ring-billed Gull. Larus delawarensis Ord. Common 

 in migration. 



Laughing Gull. Larus atricilla Linn. Few about 

 islands in summer. 



Black Tern. Hydrochelidon nigra surinamensis 

 {Gmel.). Accidental; Grand Manan. 



