76 



THE HAWK OWL. 



facial disk, and in the Hawk Owl this disk, or "concha," is not nearly so large or so well 

 defined as in the other members of the same gi'oup. The eyes, too, are rather differently formed, 

 as the bird is able to follow its prey by day as well as in the dark, and therefoie requires 

 a character of eye which will not be injured or half blinded by ordinary dayliglit. The 

 plumage is closer than that of the generality of Owls, whose feathers are fringed with delicate 

 downy filaments, for the purpose of enabling them to float noiselessly through the air, for the 

 Hawk Owl is a swift-winged bird, and obtains its prey by fair chase. 



The food of tlie Canada Owl consists chiefly of rats, mice, and insects, diiring the summer 

 months ; but in the winter, while rats and mice keep within their homes, and the insects are as 

 yet in theii- \)\x^Si state, the Canada Owl turns its attention to birds, and will even chase and 



kill so powerful a prey as the ptar- 

 migan. It is a very bold bird, and 

 has been known to pounce uxjon and 

 carry away wounded game that has 

 fallen before the sportsman's gun. 

 While chasing the ptarmigan it fol- 

 lows the course of their migration, 

 hanging about the flocks and making 

 sad havoc in their numbers. 



The Hawk Owl is an inhabitant 

 of the more polar regions, being 

 most commonly seen in the extreme 

 north of Asia and America, though 

 it sometimes pays a visit to North- 

 ern Euroj^e. Richardson tells us that 

 it seldom travels farther south than 

 Pennsylvania, but very few speci- 

 mens having been noticed in that 

 locality, and those only when the 

 winter has been more than usually 

 severe. 



A] though so bold and so success- 

 fid a huntei', the Hawk Owl is by no 

 means a large bird, being only from 

 fifteen to seventeen inches in length, 

 and thei'efore not equalling the com- 

 mon hen harrier in dimensions. Its 

 nest is generally made on the summit 

 of a tree, contrary to the usual habit 

 of Owls, which usually take posses- 

 sion of a hollow in some dead branch 

 and lay their eggs on the soft decay- 

 ing wood, or make their home in a convenient crevice of some old building. The male Hawk 

 Owl is rather less than the female, as is the case with most predaceous birds. 



The general color of this bird is dark spotted brown above and striped white below, 

 arranged briefly as follows : The toj) of the head and back is l1ro^\^l, covered vvith white spots, 

 the spots disappearing at the insertion of the wings, where a large patch of very dark brown is 

 placed. The outer edge of the concha is jetty black, and its inner surface is grayish-white. 

 The throat is also wliite, and the chest and abdomen are of the same tint, marked with 

 a number of irregular stripes of ashen-brown. The tail is bro^\Ti, covered with a few nar- 

 row intercepted blade bands. The legs are feathered as far as the claws, and the bill is 

 yellow Avith a few spots of black. These colors are slightly variable in individuals, owing 

 most probably to the difl'eience of age, and in the female they are not so bright as in her 

 mate. 



HAWK OWL.—Sumla idula. 



