148 FALCONID^E. 



Hierofalco islandus. ICELAND FALCON. 



FalCQ islandus Br&nnich, Orn. Bor. 1764, p. 2 [part ] : 



Iceland. 

 Hierofalco islandus (Gmel.) Sharpe, Oat. Birds B. M. i. 1874, 



p. 414 ; B. O. II. List, 1st ed. 1883, p. 102. 

 Falco islandus Saunders, Manual, 2nd ed. 1899, p. 343. 

 Islandus =of Iceland. 



Distribution in the British Islands. An Occasional Visitor. 

 Examples have been obtained mostly in winter in the Shet- 

 lands, Orkneys, the Outer and Inner Hebrides and in several 

 localities, both in Scotland and in England. In Ireland it 

 has occurred four times in the north and west. 



General Distribution. The Iceland F;ilcon breeds in Ice- 

 land, Jan Mayen, and south Greenland (//. liolboelli Sliarpe), 

 also in northern Siberia (H. uralensis Severtz. & Menzb.) to 

 Kamchatka. It wanders southwards to the Faeroes, north- 

 west Europe, and to northern Asia, including the Commander 

 Islands ; also apparently to Labrador. 



Hierofalco islandus candicans. GREENLAND 

 FALCON. 



Falco candicans Gmelin, Syst. Nat. i. 1789, p. 275: 

 " Iceland." 



Hierofalco candicans (Grnel.^) ; Skarpe, Cat. Birds B. M. i. 1874, 



p. 411 ; B. O. U. List, 1st ed. 1883, p. 101. 

 Falco candicans Saunders, Manual, 2nd ed. 1899, p. 341. 



Candicans = white. 



Distribution in the British Islands. An Irregular Visitor 

 in winter and spring. It occurs almost annually in Scotland 

 and the adjacent islands, likewise in Ireland. In England 

 and Wales it is less abundant. 



General Distribution. The Greenland Falcon breeds in 

 northern Greenland and Arctic North America from 

 Ellesmere Land to Alaska and Bering Island. Some 

 migrate farther south in winter and wander to Iceland, the 

 Faeroes, and western Europe. 



