Jan., 1909. Birds of Illinois and Wisconsin — Cory. 



495 



Screech Owl. 

 About one-quarter natural size. 



in intensity and at times somewhat resembling the cry made by a cat 

 when expressing his disapprobation of a rival. Taken when young 

 they are easily tamed and made amusing pets. 



The eggs are deposited in holes in trees. They are pure white, 

 four to six in number, and measure about 1.40 x 1.20 inches. Nidifi- 

 cation usually commences in April. 



Genus BUBO Dumeril. 



181. Bubo virginianus (Gmel.). 

 Great Horned Owl. 



Distr.. Eastern North America, north to Labrador; breeds 

 throughout its range. 



Adult: Ear tufts, large; general plumage, mixed tawny black and 

 white, the tawny color predominating; a white patch on the throat. 



The Conspicuous ear tufts and coloration will always distinguish it 

 from our other large owls, and its size from the smaller species. 



Length, about 23; wing, 14.20 to 16; tail, about 9. 



