138 NATURAL HISTORY. 
and mice, and its presence 
about barns and dove-cots 
should be encouraged. It 
conceals itself in the day- 
time in old trees, in barn- 
lofts, etc., and at night sal- 
lies forth in search of its 
prey. 
234. Of the aberrant 
species, the Snowy Owl, 
Fig. 115, is one of the 
largest. You see that this 
has not the disk around 
Fig. 114.—The Barn Owl. ,. the _eye which the Barn 
Owl has, and its shape is 
much like that of the Eagle tribe. This bird is found in 
the northern regions of both hemispheres. Jts snowy 
Fig. 115.—The Snowy Owl. 
