THE CARIBOU 
dwell are so vast and so difficult to traverse that the experiences of 
individual travellers are not sufficient to give us a comprehensive view of the 
whole question, and it will take years before we are in a position to know 
the limits of range of each local variety. The great difficulty of determining 
these local races lies in the fact that whilst large numbers remain in one 
area practically the whole season equal numbers migrate and pass through 
them to other areas overlapping other local races. Formerly it was thought 
that all these northern caribou migrated but this is not the case. For in- 
stance, great numbers of caribou never leave the neighbourhood of the 
Arctic Ocean east of Point Barrow and the best hunting season of the 
Esquimaux there is in January and February. So, too, east of the Mac- 
kenzie, Mr Stefannsen found a few caribou at all seasons in his long journey 
from this river to the Chesterfield Peninsula, and from this we know 
that large numbers always migrate in a south-westerly direction. This 
shows that the Arctic caribou is in no sense different in its habits from the 
caribou of Newfoundland or the central Canadian forests. 
That all these northern reindeer overlap and interbreed there can be 
little doubt, which makes the making of further sub-species more difficult. 
As my friend, Mr Warburton Pike, says, in a letter to me: “ The whole 
subject of the variations of these northern caribou is so enormous that 
I have never dared to attack it.” Speaking of the junction of races he says: 
“ When I was shooting in the Great Slave Lake country many years ago, 
all the caribou to the eastward were the ‘ barren ground ’ race, but when 
you crossed the river to the west you entered a heavily afforested region 
inhabited by the 4 woodland ’ race as they are called locally. Those in a 
sparsely wooded country were an intermediate type, and thus caribou 
affect a type in direct ratio to the character of their surroundings.” 
Tarandus rangifer ogilvyensis (sub-spec. nov.).Ifthe intermediate races, so- 
called “ barren-land ” and “ woodland,” such as T. r. granti and T. r. stonei, 
are to hold good as sub-species we must acknowledge yet another “ buffer ” 
race found in the Ogilvy Mountains, to the north of Dawson. These caribou 
are also hybrids of T. r. osborni and T. r. arcticus , and both, in body 
markings and horns, show their affinity to both their local races. Specimens 
shot in these mountains by Mr Sheldon, Carl Rungius, F. C. Selous and 
other travellers show the type to be a large animal, not quite so big as 
T. r. osborni , not so dark in the colour but bearing also a strong general 
resemblance to T. r. arcticus, but larger than that animal. The horns 
bear a close affinity to inferior specimens of T. r. osborni , being thick 
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