8o 



VERTEBRATES; lilKDS. 



is noted for its tremulous, doleful notes; the Long- 

 eared Owl has very long ear-tufts, and its cry is pro- 

 longed and plaintive, consisting of two or three notes 

 repeated at intervals ; the Gray Owls are very large ; 

 the Saw-whet Owl is small, and its notes sound like 



IS' 



©^ 



^^ 



Fig. log. — Snowy Owl. 



the noise made in filing a saw : the Burrowing Owls 

 are very small, and live in the burrows of the Prairie 

 Dog. The Sno\\-y Owl is large, and hunts in the day- 

 time as well as at twilight; it lives in the cold regions, 

 and is seen in the United States only in winter. 



Climiiers, or Scansores. 



Climbers have two toes in front and two behind. 

 Parrots, Cuckoos, and Woodpeckers are the chief kinds. 



