934 



A PRACTICAL HANDBOOK OF BRITISH BIRDS. 



453. Larus argentatus cachinnans Pall. 



The Yellow-legged Herring-Gull. 



454. Larus fuscus fuscus L. 



The Scandinavian Lesser Black- 

 backed Gull. 



455. Larus fuscus affinis Reinh. 



The British Lesser Black- backed 



456. Larus marinus L. 



The Great Black-backed Gull. 



457. Larus hyperboreus Gunn. 



The Glaucous Gull. 



458. Larus glaucoides Meyer 

 The Iceland Gull. 



STATUS PAGE 



One obtained, two seen Eng- 

 land, one seen Scotland . .753 



Passage -migrant and occasional 

 winter-visitor, few identified . 756 



Summer-visitor, breeds, but only 

 Gull, locally in s. England, Ireland . 757 



Resident, breeds locally, not e. 

 England .... 761 



Winter- visitor, chiefly e. G. 

 Britain, n. and w. Ireland and 

 O. Hebrides .... 765 



Winter-visitor, as Glaucous 



Gull but scarcer . . .769 



Genus RISSA Stephens 



459. Rissa tridactyla tridactyla (L.) 



The Kittiwake Gull. 



Genus PAGOPHILA Kaup 



460. Pagophila eburnea (Phipps) 



The Ivory-Gull. 



Resident, breeds, chiefly w. G. 

 Britain, isles and Ireland : also 

 winter-visitor 



Vagrant, 

 Orkneys 



chiefly Shetlands, 



770 



770 

 774 



774 



Genus STERCORARIUS Brisson 



461. Stercorarius skua skua (Brunn.) 



The Great Skua 



462. Stercorarius pomarinus (Temm.) 



The Pomatorhine Skua. 



463. Stercorarius parasiticus (L.) 



The Arctic Skua. 



464. Stercorarius longicaudus Vieill. 

 The Long-tailed Skua. 



Breeds Shetlands, Orkneys : 

 elsewhere rare winter-visitor 



Passage -migrant, occasional 

 winter ..... 



Summer-visitor, breeds n. Scot- 

 land, Shetlands, Orkneys, Heb- 

 rides : elsewhere passage-mi- 

 grant ..... 



Scarce and irregular passage- 

 migrant, most frequent e. coast 

 England .... 



76 



777 

 •79 



'83 



F87 



Order ALC^E 

 Family ALCID^E 



Genus ALCA Linnaeus 



465. Alca torda L. 



The Razorbill. 



466. Alca impennis L. 



The Great Auk. 



790 



791 



791 



Resident, breeds suitable cliffs . 791 



Extinct : formerly bred Ork- 



neys, ? O. Hebrides 



795 



Genus URIA Brisson 



467. Uria aalge aalge (Pont.) 



The Northern Guillemot. 



468. Uria aalge albionis W T ith. 



The Southern Guillemot. 



796 

 Winter-visitor, possibly breeds 

 Shetlands, Orkneys, ? O. Heb- 

 rides ..... 796 



Resident, breeds suitable cliffs, 

 except perhaps Shetlands, Ork- 

 nevs, O. Hebrides . . .797 



