HORNED OWLS 



all of the olluTs in food and nesting liabits. 

 It is a bird of great economic value living al- 

 most entirely on vermin of all kinds, rats, 

 mice, roaches and other noxious pests, rarely 

 attacking birds of any kind. Its peculiar 

 tremulous and barking call notes are among 

 the familiar sounds of warm summer nights 

 in both city and country. It lays its eggs in 

 old woodpeckers' holes and in natural cavities 

 in trees and dead stubs from ten to fifty feet 

 from the ground. 



California pygmy owl, Glaucidium 

 gnoma californicum. 7.00 



Distribution: From southern California 

 north through eastern Oregon, Washington 

 and Idaho to southern British Columbia. 

 Two closely allied species are the coast pygmy 

 owl of the humid coast districts of California, 

 Oregon, Washington and British Columbia, 

 and the Vancouver pygmy owl of Vancouver 

 Island. 



The pygmy owl is often found flying about 

 in the daylight hours preying upon small birds 

 among whom it is very destructive. It is 

 about half the size of the screech owl, being 

 the smallest of the northwestern owls and on 

 this account may be easily identified at sight. 

 The pygmy owl lays its eggs in old wood- 

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