American Big-Game Hunting 
While by no means as numerous as elk, deer 
are found in sufficient numbers to allay all 
anxiety as to their permanence under the 
new conditions now surrounding the Park. 
Antelope, graceful and swift-footed crea- 
tures, restrict their range to the open country, 
with habits nearly identical to those devel- 
oped on the plain. They are by no means 
numerous, and were so much shot at before 
protection was afforded that they nearly be- 
came extinct. But in the last few years they 
have steadily increased in numbers, and ex- 
perience seems to have taught them that 
safety lies within the protected region, rather 
than in seeking in winter the lowlands out- 
side its borders. Swan Valley and the slopes 
of Mount Everts apparently satisfy their re- 
quirements. In summer small bands roam 
over Hayden Valley, but so far as I know 
have not increased in size. 
The advantages of this region as a game 
reservation are again shown in its meeting 
the requirements of the bighorn, or mountain 
sheep (Ouvzs canadensis), an animal of quite 
different habits, which lives almost wholly 
among the crags and cliffs of the steepest 
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