318 TETRAONIDJO. 



Distribution. — A Besident, and confined to the British 

 Islands. On the moors of Scotland it is generally distributed 

 from sea-level to the highest point where ling and heather 

 flourish ; also the Inner and Outer Hebrides and some of the 

 Orkney Islands such as Hoy, Pomona, and Rousay, where 

 suitable ground occurs. In the Shetland Islands it is not 

 indigenous, but it has been introduced successfully. In 

 England it is plentiful in the northern counties and extends 

 southwards to Derbyshire, Staffordshire, and Shropshire. 

 In Wales it is plentiful on most of the moors. In Ireland 

 it is less numerous, but occurs on some of the moors and 

 bogs. 



On the Continent the Red Grouse has been successfully 

 introduced in Belgium and the Eifel Mountains, west Grer- 

 many ; also possibly elsewhere. It is represented in the 

 more northern parts of the northern Hemisphere by the 

 Willow-Grouse, L. lagopus. 



Lagopus mutus. Ptarmigan, 



Tetrao mutus Mnntin, Phys. Salsk. Handl. i. 1776-81, 

 p. 155 : Lapland. 



Lagopus mutus (Monliu) ; B. O. U. List, 1st ed. 1883, p. 144 ; 

 Ogilvie- Grant, Cat. Birds B. M. xxii. 1893, p. 44 ; Saunders, 

 Manual, 2nd ed. 1899, p. 497. 



Mutua = silent. 



Distribution in the British Islands. — A Besident on the 

 tops of the higher mountains of Scotland from Perthshire 

 and Argyllshire northwards, and still lingering in Rum, 

 where it has been reintroduced, also in Mull, Islay, 

 and Jura ; in Skye it is found in small numbers. In 

 Lewis, Harris, North and South Uist it seems to have 

 disappeared during recent years. In the island of Hoy, 

 Orkneys, it is said to have become extinct about 1831, and 

 in Dumfries-shire and Kircudbrightshire about 1822. There 

 is reason to believe that it inhabited the fells of Cumberland 

 and Westmoreland in former times. In Ireland it is unknown, 

 and attempts to introduce it have been unsuccessful. 



