28 BULLETIN 1151, U. S. DEPARTMENT OF AGRICULTURE. 
Fig. 32. 
-Arrangement of underground dens, showing ventila- 
tion, the den properly located in alleyway. 
to facilitate clean- 
ing and to permit 
the removal of foxes 
or pups. Several 
holes one-half inch 
in diameter bored 
in the cover furnish 
ventilation. The 
nest is kept warm 
by being packed on 
all sides with dry 
sawdust, oat hulls, 
ground cork, leaves, 
seaweed, chaff, or 
sand. 
A solid box with 
a hole in one end is 
commonly used for 
a nest box, but it 
is impractical from 
the caretaker's point 
of view. (Fig. 34.) 
With such a box it 
is almost impossible 
to remove a fox or 
pup without pick- 
ing up the box bodily and dumping out the contents. If the care- 
taker reaches in for the purpose of dragging out a fox or pup he is 
almost certain to be bitten. 
THE WATCH TOWER, 
OR LOOKOUT. 
The watch tower, 
or lookout, is used 
for the purpose of 
observing and study- 
ing the behavior and 
habits of the foxes 
and their conforma- 
tion, tricks, and gen- 
eral make-up during 
various seasons of the 
year, but more espe- 
cially during the 
breeding and whelp- 
ing periods. It is a 
most necessary ad- 
junct to fox raising, 
and without it on a 
ranch of more than 10 
pens the caretaker is 
greatly handicapped. 
r/fO/VT ■ £L£rt//?T/OA/ 
Fig. 33. — A good type of nest box. 
