SPOTTED GROUSE. 387 
Orn. p. 197, pl. 91, fig. 2,—Tetras Tacheté, ou Acaho, Temm. Pig. et Gall. 
iii. p. 160, bis.—Black and Spotted Heathcock, Edw. Gillean. p. 118, pl. 118, 
male.—Brown and Spotted Heathcock, Hdw. Glean. p. 71, pl. 71, female. 
—Hllis, Hudson’s Bay, i. t. p. 50.—Spotted Grouse, Penn. Arct. Zool. sp. 182. 
—Lath. Syn. iv. p. 735, sp. 6; Id. Suppl. p. 214, accid. var.—The Small 
Speckled Pheasant, Lewis and Clark, Exp. ii. p. 182, male.—The Small 
Brown Pheasant, Jd. ii. p. 182, female.—Philadelphia Museum, male.—IMy 
Collection, male and female. 
TETRAO CANADENSIS.—LINNAUS.* 
Tetrao Canadensis, Spotted Grouse, Worth. Zool. ii. p. 346, pl. 62. Temm. 
As may be seen by the synonymy, two separate species hive 
been made of the present, the male and female being taken 
* Tn this place must be introduced the Tetrao Franklinii of Douglas 
first noticed by that gentleman in the “Transactions of the Linnaan 
Society.” It is a species which has been involved in confusion with the 
T. Canadensis, from the different opinions which those persons who 
‘have met with it have formed. By the Prince of Musignano and Mr 
Drummond, an acute observer, it is thought to be a variety only, while 
Mr Douglas and the authors of the “ Northern Zoology” consider it 
distinct. 
I have added the description of the latter naturalists, and some obser- 
vations on its habits by Mr Douglas. I cannot decide, not having 
specimens of both to compare ; but, from the known variation of the 
markings of those birds, which will stand in the division Tetrao, a very 
accurate comparison indeed of numerous specimens, with the investiga- 
tion of their habits, would be necessary to distinguish those which are 
seemingly so nearly allied. 
Tetrao Franklinti, Douglas. 
Tetrao Franklinii, Dougl. Trans. Linn. xvi. p. 139. North. Zool. i. p. 384. 
“There is such a close resemblance between this and the common 
Canadian grouse, that the Prince of Musignano considers it only as a 
variety ; and this opinion is entertained also by Mr Drummond, a very 
acute practical observer. The latter had ample opportunities of study. 
ing the manners of both, and he assures us that he is not aware of any 
difference between them ; Mr Douglas, on the other hand, who has also 
seen these birds in their native regions, thinks differently, and although 
he observes that in habits it assimilates more with 7. Canadensis than 
any other, he considers the ‘unusually long, square tail,’ and its colour- 
ing, as sufficiently distinctive characters, In our species, the tail is not 
longer than that in Canadensis; and, did we look to the colouring 
