36 



CLASS AVES. 



The Hazel GrouSy Lath. Tetrao Bonasia, L. Enl. 

 474, 5. Frish. 112. Naum, 20, f. 39- Bonasia, 

 or Bonasa, the name of the hazel grous in Albert 

 the Great, and authors of the middle ages. 



Not much bigger than the partridge, pleasingly 

 varied with brown, white-grey, and red ; a large 

 black band near the end of the tail ; the throat of 

 the male, black ; the head slightly crested. 



The Attagas, of Buff. Attagen^ of Aldrov. 

 Ornith. II. p. 7^, Gelinotte Huppe^ Briss., does not 

 appear to me, after considerable research, made even 

 in Italy, to be any other than a young, or female. 

 It is the same bird as the individual figured by 

 Frisch, pi. 112. 



The Tetrao Canus of Gm. (Sparm. Mus. Carl, 

 p. 16,) is a mere albine variety of the Tetrao Bonasia. 



Neither do I credit the authenticity of the Tet. 

 Nemesianus, nor of the Tet. Betulinus of Scopoli. 

 They are only females or young of the Tet. Tetrix, 

 or disfigured T. Bonasia. 



America produces some species allied to the Heath 

 Cocks, or Grous of Europe, as 



The Spotted Grouse Lath. Tetrao Canadensis^ T. 

 Canace, Lin. Enl. 131, 132. Edw. 118 and 

 71. 



Brown, more or less black ; the end of the tail, 

 red. 



