66 INDEX-CATALOGtJE OF TUE BlKt)S 



' ASF 



187. Ptarmigan, Lagopus mutus, Montin 



Nos. 1 and 5 (centre). Male. Summer plumage. 



Scotland, Sept. 16th, 1840. 

 No. 2 (upper). Male. Winter plumage. 



Scotland, Dec, 1841. 

 ,, 3 (left). Famali. "Winter plumage. 



Auckleeks, Blair Athol, March 20th, 1834. 

 ,, 4 (centre). Downy state. Alps of Switzerland. 



Cochrane, Esq. 

 ,, 6 (right). Male, changing from young to mature 



plumage. 

 Kingussie, Aberardar, Inverness, Sept., 1890. 

 Presented by Miss Nell Allhusen, per R. Y. Green, Esq. 

 Stuffed by J. Jackson. 



Genus. TETRAO. 



188. Black Grouse. Tetrao tetrix, Linn. 



No. 1 (left). Male, changing from first plumage to 



mature, 1840. J. H. 

 ,, 2 (right). Male, changing from first to mature 



plumage. Near Haydon Bridge, 6th Sept., 1898. 

 Presented by Geo. E. Craivhall, Esq. 

 Stuffed by J. Jackson. 



189. Black Grouse. Tetrao tetrix, Linn. 



No. 1 (left). Femaxe. Northumberland, Jan., 1833. 



Presented by Mr. Losh. 

 ,, 2 (right), Matuke male. Northumberland. 



190. Black Grouse. 



No. 1. Mature male, changing from summer to winter 



plumage. Near Elsdon, Sept. 1st, 1893. 

 Presented by Geo. E. Crawhall, Esq. 

 Stuffed by J. Jackson. 



