138 HANDBOOK OF BRITISH BIRDS 



The Grouse in Orkney are said to exceed in 

 weight those found in any part of Scotland. Aver- 

 age weight of old Grouse, 20 to 24 oz. ; best in 

 Scotland, 28 oz. ; Orkney birds up to 30 oz. In 

 England, on the Alston moors, old hens weigh 23 oz., 

 old cocks, 26 oz. ; in Upper Swaledale 28 to 30 oz. 



The following are some record bags : — On Aug. 

 30, 1888, Lord Walsingham shot 1070 driven 

 Grouse — 535 brace — on Bluberhouse Moor, York- 

 shire {Field, Sept. 8, 1888); on Aug. 20, 1872, 

 Sir F. Milbank, with five other guns, killed 2070 

 Grouse, or 1035 brace, on Wemmergill Moors, 

 Yorkshire, and in the same year Mr. Remington 

 Wilson and friends on one day bagged 1313 brace 

 by *' driving." 



The subject of Grouse disease is one on which 

 a volume might be written, and cannot here be dis- 

 cussed. The following sources of information may 

 be consulted : — 



St. John, "Nat. Hist, and Sport in Moray," 1863. 



Colquhoun, " The Moor and the Loch," 1868. 



Young, "Aspects of the Grouse Disease," Proc. Nat. 

 Hist. Soc. Glasgoiv, 1868, p. 225. 



Gray, "Birds of the West of Scotland," 1871, p. 233. 



Cobbold, " The Grouse Disease," 8vo, pp. 27, 1873. 



Baton, Report on Grouse Disease, Field, June 17, 1882. 



Harvie-Brown, Remarks on Grouse Disease, Zool., 1882, 

 pp. 401-404. 



Macdonald, "Grouse Disease: its Causes and Re- 

 medies," 3rd ed., 1883, p. 190. 



Harting, Review of the subject. Field, April 28, 1883. 



Speedy, " Sport in the Highlands and Lowlands of 

 Scotland," 1884, pp. 182-201. 



