138 ANNALS OF SCOTTISH NATURAL HISTORY 



in speaking of the flanks takes place in the chest 

 feathers, the finely mottled and barred rufous and black 

 autumn plumage becoming widely barred with black and 

 buff. 



In conclusion, I can only hope that I may have succeeded 

 in making clear to my readers the somewhat intricate changes 

 of plumage in the Red Grouse, more especially in the female. 

 I trust that any friends and correspondents who may meet 

 with good examples of any of the above-mentioned types, or 

 with peculiar varieties of this species, will remember that by 

 forwarding them to me at the Natural History Museum, 

 Cromwell Road, London, they will be making a valuable 

 addition to the National Collection, which is as yet by no 

 means complete. 



SYNOPSIS OF THE PLUMAGES. 



MALES. 



I. Red form . 



2. Black form 



3. White -spotted 

 form. 



Antti'iin Plumage. 



Upper parts black, 

 margined and ir- 

 regularly barred 

 with bright 

 tawny b u ff. 

 Under parts as 

 in the winter- 

 summer plum- 

 age, differing 

 according to the 

 type to which 

 each individual 

 belongs. 



Winter-Summer Plumage. 



Feathers of the 

 upper parts dark 

 chestnut, more 

 or less mottled 

 with black (Fig. 

 8). 



Feathers of the 

 upper parts 

 black, with a 

 few indistinct 

 mottlings of ruf- 

 ous towards the 

 extremities of 

 some (Fig 10). 



Feathers of the 

 upper parts 

 black, finely 

 b a r r e d an d 

 mottled with 

 dark chestnut, 

 or chestnut finely 

 in a r k e d with 

 black. 



Feathers of the 

 breast and belly 

 dark chestnut 

 mottled with 

 black. 



Feathers of the 

 under parts 

 black, or with 

 here and there a 

 few faint red 

 mottlings. 



Feathers of the 

 under parts 

 widely tipped 

 with white. 

 (Head and back 

 sometimes simi- 

 larly marked.) 



