PERDICID^E. 47 



The BLACK COCK. LYRURUS tetrix, Swains. Tetrao 

 tetrix, Linn. S. N. i. 274, t. 172, 173. 



a. Male. Devonshire. From Col. Montagu's Collection. 



b. Male. Norway. Presented by J. G. Children, Esq. 



c. Female. Norway. Presented by J. G. Children, Esq. 



d. Alnwick. Hybrid between the Black Grous and 

 Pheasant. Presented by His Grace the Duke of 

 Northumberland, K.G., c., &c. 



The RED GROUS. LAGOPUS Scoticus. Tetrao Scoticus, 

 Lath. Ind. Orn. n. 641. 



a. Male. Scotland. From Col. Montagu's Collection. 

 6. Female. Scotland. From Col. Montagu's Collection. 



The WILLOW GROUS. LAGOPUS albus. Tetrao albus 

 Gmel. S. N. i. 750. T. lagopus, Retz. T. subalpinus, 

 Nils. T. lapponicus, Gmel. T. saliceti, Temm. 



as Summer. Sweden. Presented by Sir H. Davy, Bart., 



P.R.S. 

 6. Young, Summer. Sweden Presented by Sir H. Davy, 



Bart., P.R.S. 



c. Young, Summer. North Bothnia. From M. Wai- 

 berg's Collection. 



d. August. North Bothnia. From M. Walberg's Col- 

 lection. 



e. Winter. North Bothnia. From M. Walberg's Col- 

 lection. 



/. Summer. North America. From Mr. Audubon's 

 Collection. 



g. Young. North America. From Mr. Audubon's Col- 

 lection. 



h. Winter. Northern Land Expedition. Presented by 

 Capt. G. Back, R.N. 



i.j. North America, Presented by the Hudson's Bay 

 Company. 



k. Falkland Islands ? Presented by G. Bennett, Esq. 



The ICELAND GROUS. LAGOPUS Islandorum. Tetrao 

 Islandorum, Faber. 



a. Winter. Iceland. From Mr. Leadbeater's Collection. 

 6. Spring. Iceland. From Mr. Leadbeater's Collection. 



