i 
blood; but more on this subject will be found in my account of the 
Red Grouse. As bearing upon their unity, I may mention that 
I made a journey to Norway for the sole purpose of studying the 
habits of Zetrao saliceti, and observed that they differed in little or 
no respect from those of our Grouse, and that its crow was also 
similar. 
Mr. Robert Gray remarks that, as a rule, all the Grouse from Lewis, 
Harris, North and South Uist, Barra, &c. “‘may be said to be 
smaller and lighter in colour than those from moors on the main- 
land, especially the mountain-ranges of the north-east of Scotland, 
which invariably yield in good seasons the largest and most beau- 
tifully marked birds. In many districts the native Grouse par- 
take of the coloration of the ground in their markings: thus 
the finest and darkest birds are those frequenting rich heathy 
tracts ; while on broken ground of a rocky character, such as may 
be seen in Wigtownshire, the grouse are either more or less mottled, 
or are altogether lighter in colour, and less in size and weight.” 
Before closing my remarks on the Tetrao saliceti and the English 
Grouse, it may be interesting to note that the extent of the southern 
range of the former, whether we look at it in Norway, Sweden, or 
Russia, is restricted to much about the same degree of southern lati- 
tude as that of our own bird in England and Wales, thus adding one 
more indirect proof of their probable identity. On the other hand 
the Blackcock and Ptarmigan have a more extended southern 
range, both being found in Switzerland, if not in Northern Italy. 
Although in a previous page I have discountenanced the introduc- 
tion of new species, I may be here permitted to make an exception 
by advocating the claims of the Gelinotte or Hazel-Grouse (Bonasa 
betulina) to a trial of acclimatization in this country. Without put- 
ting forth this suggestion as original, I may state that having seen 
much of this excellent bird in Norway and other parts of Europe, 
and noticed that it there dwells in woods very similar to those which 
occur in Kent and other counties of England and Scotland, I see no 
reason why it should not be successfully naturalized; and I would 
suggest that those who are of the same opinion and have the means 
of making the experiment should do so. 
“Tt is to me a mystery,” says Mr. Lloyd, in his ‘Game-birds and 
Wild Fowl of Sweden and Norway,’ “why the Hazel-Hen, which, from 
its English name, would almost seem to have been a former inhabitant 
of the British Isles, has not been naturalized with us, inasmuch as it 
is, of all game-birds, the most delicious, of consummate beauty, and of 
unconquerable hardihood, ‘ and adapted, moreover,’ according to Mr. 
George Chichester Oxenden, who has seen and shot these birds in 
most European countries, ‘to every variety of cover, from pine- 
forests to hazel- and oak-copses.’ But it is not too late in the day 
for the Acclimatization Society to take the Hazel-Hen in hand; and 
if the localities were suitable for the purpose (and such there are, no 
doubt, in England and Scotland), and the attempt were made with 
from twenty to fifty brace of these birds, I see no reason why it 
should not succeed.” 
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