316 TETRAONIP^E. 



now spread eastwards and northwards to Fife, Forfarsliire, 

 Aberdeensbire, Iloss-shire, and Cromarty, vvbile westwards 

 and southwards it is found in Argyllshire, Ayrshire, Dimii- 

 fries-shire, Wigtownshire, etc. In time it, will no doubt be 

 found in all suitable large woods. Formerly it was indi- 

 genous all over Great Britain and Ireland ; in England and 

 Wales it became extinct at some unknown period, but in 

 Scotland and Ireland it existed until about 1760-70. 



General Distribution. The Capercaillie inhabits the pine- 

 forests of Europe, and northern and central Asia as far east as 

 Lake Baikal. In Scandinavia it is found south of 70 N. lati- 

 tude, and thence eastwards through Russia and west Siberia 

 to the Lena south of about 67 N. Southwards its range 

 extends to the Cantabrian Mountains, Pyrenees, Alps, Car- 

 pathians, Balkans, north-east Turkestan, and the Altai 

 Mountains. In the Ural Mountains it is represented by 

 the paler form T. u. uralensis ; in north-east Siberia and 

 the Island of Saghalien by T. parvirostris ; and in Kamchatka 

 by T. p. kamtschaticus. 



Genus LYRURUS Swainson, Faun. Bur. Amer. ii. 1832, 

 p. 497. 



Type : L. tetrix (Linn.). 

 Lyrurus, from Xvpa a lyre, and uvpa = a tail. 



Lyrurus tetrix. (EXTRA-LIMITAL.) 



Lyrurus tetrix britannicus. BRITISH BLACK 

 GROUSE. 



Lyrurus tetrix britannicus Witherty $ L'6nnber<j, 

 'British Birds/ vi. 1913, p. 270: Dumfries-shire, 

 Scotland. 



Tetrao tetrix Linn.; B. O. U. List, 1st eel. 1883, p. 145; 



Saunders, Manual, 2nd ed. 1899, p. 493. 

 Lyrurus tetrix Ogilvie- Grant, Cat. Birds B. M. xxii. 1893, p. 53 



(part.)- 



Tftrix = rerp<, a bird mentioned by Aristotle ; cf. Tetrao, Britannicus = 

 British. 



