BIRDS OF THE BRITISH ISLES. 177 



The Iceland Jer-Falcon {Hierofalco islandiis^ Gmelin), also 

 called the Iceland Falcon, is a rare irregular winter migrant 

 to the British Islands, and is a resident in Iceland, and has 

 been noticed in portions of Greenland. The adult has the 

 prevaiHng colour of the upper plumage of a creamy tint, 

 washed with slaty-grey, and with borders and bars of a 

 whitish colour; head, white, with thin blackish streaks: 

 rectrices, grey, with bars of a darker tint ; under parts, 

 whitish, spotted longitudinally on breast, and barred on 

 flanks with blackish ; irides, dark brown ; bill, dusky horn 

 colour ; base beneath, yellowish ; legs and feet, bluish. 

 Length, from twenty-one to twenty-two inches. 



ScanMnavian 3cr^3falcoiv 



The Scandinavian Jer-Falcon {Hicrofa/co gyrfalco, Lin- 

 nceus) is a rare nomadic winter migrant to the British Isles. 

 It inhabits Arctic Scandinavia. This species is closely 

 allied to the Iceland falcon, but is darker in colouration 

 and smaller in size. 



