470 APPENDIX V 



15. STERCORARIUS PARASITICUS. Parasitic jaeger. 

 Common summer visitor ; perhaps breeds in north. 



16. STERCORARIUS LONGICAUDUS. Long-tailed jaeger. 

 Rare summer resident. 



17. PAGOPHILA ALBA. Ivory gull; "ice partridge." 

 Common winter visitor. 



18. RISSA TRIDACTYLA. Kittiwake ; "tickler." 

 Abundant summer resident. 



19. LARUS GLAUCUS. Glaucous gull. 

 Common summer resident ; a few winter. 



20. LARUS LEUCOPTERUS. Iceland gull. 

 Rare transient or winter visitor. 



21. LARUS MARINUS. Great black-backed gull ; "saddle-back." 

 Common summer resident. 



22. LARUS ARGENTATUS. Herring gull. 

 Common summer resident. 



23. LARUS DELAWARENSIS. Ring-billed gull. 

 Uncommon summer resident, locally in south. 



24. LARUS PHILADELPHIA. Bonaparte's gull. 

 Common transient ; autumnal visitor in south. 



25. XEMA SABINII. Sabine's gull. 

 Rare transient visitor. 



26. STERNA CASPIA. Caspian tern. 

 Very rare summer resident in south. 



27. STERNA HIRUNDO. Common tern. 

 Common summer resident in south. 



28. STERNA PARADIS^A. Arctic tern. 

 Common summer resident, locally. 



29. STERNA ANTILLARUM. Least tern. 

 Extirpated. 



30. FULMARUS GLACIALIS. Fulmar. 

 Common summer visitor. 



31. PUFFINUS GRAVIS. Greater shearwater. 

 Abundant summer visitor. 



32. PUFFINUS FULIGINOSUS. Sooty shearwater. 

 Common summer visitor. 



33. PROCELLARIA PELAGICA. Stormy petrel. 

 Rare summer visitor. 



34. OCEANODROMA LEucoRHpA. Leach's petrel. 

 Common summer resident in south. 



35. OCEANITES OCEANICUS. Wilson's petrel. 

 Uncommon summer visitor. 



36. SULA BASSANA. Gannet. 

 Uncommon summer resident, locally. 



37. PHALACROCORAX CARBO. Cormorant. 

 Common summer resident, locally. 



