22 CHAPTER I 



American "Check-List" (1931), with subsequent Supplements in "The Auk", 

 were the foremost substitutes. The British "Handbook" (1945) also rendered 

 excellent service. Valuable information was obtained from Dr. Gustaf Rudebeck, 

 Lund. 



Only breeding areas were considered. 



Gaviiformes 



GAVIA (COLYMBUS) ADAMSII Gray 



(White-billed Northern Diver; Yellow-billed Loon) 

 N Finl. (?), N Russ., N. Zeml., Arct. Alas. -Mackenzie, Boothia Penins. 



Sib. E to Bering Strait. 



GAVIA (cOLYMBUS) ARCTICA L. 



/. typ. sbsp. viridigidaris Dwight sbsp. pacifica Lawr. 



(Black-throated Diver) (Green-throated Loon) (Pacific Loon) 



Scand.- Yenisei, Altai. NE Sib., Alas. Alas.-Baffins L. 



GAVIA (cOLYMBUS) STEI.LATA Pont. 



(Red-throated Diver or Loon) 

 Iceland-Scand.-Kamch. Alas.-Nfld.-Greenl. 



Podicipitiformes 



PODICEPS (cOLYMBUS) AURITUS L. 



(Slavonian or Horned Grebe) 

 /. typ. sbsp. corniitus Gmel. 



Icel., Scotl., Scand.-Sakhalin. Brit. Columbia-Magdalen Isl. 



PODICEPS (coLYMBUs) CASPicus Habl. (nigrtcollts Brehm) 



/. typ. sbsp. californicus Heerm. 



(Black-necked Grebe) (Eared Grebe) 



Eur., Asia E to Amur. W & NW N. Amer. E to Manitoba. 



PODICEPS (cOLYMBUS) GRISEIGENA Bodd. 



f, typ. sbsp. holboelli Reinh. 



(Red-necked Grebe) (Holboell's Grebe) 



N. Eur., W. Sib. E. Asia, N. Amer., E to Ungava. 



Procellariiformes 



FULMARUS GLACIALIS L. (fig. 27) 



/. typ. sbsp. rodgersii Cassin 



(Fulmar Petrel; Atlantic Fulmar) (Pacific Fulmar) 



NE arct. N. Amer., Greenl., NW Eur. NE Asia E to Bering Sea, Kuriles, islands 



oflF Alas. 



