338 INDEX-CATALOGUK OF THE BIRDS 



Case 



187. Ptarmigan. Lagopus mutus, Montin. 



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



Scotland, Sept. 16th, 1840. 

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



Scotland, Dec, 1841. 

 ,, 3 (left). Eamale. Winter plumage. 



Auckleeks, Blair Athol, March 20th, 1834. 

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



Cochrane, Esq. 

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



plumage. 

 Kingussie, Aberardar, Inverness, Sept., 1890. 

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

 Stuffed hy 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 hy Geo. E. Crawhall, Esq. 

 Stuffed by J. Jackson. 



189. Black Grouse. Tetrao tetrix, Linn. 



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



Presented by Mr. Losh. 

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



190. Black Grouse. 



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



plumage. Near Elsdon, Sept. Ist, 1893. 

 Presented hy Geo. E. Crawhall, Esq. 

 Stuffed hy J. Jackson. 



