422 



ZOOLOGY 



of the species are either harmless or actually helpful because 

 they destroy noxious rodents. Cooper's hawk, the sharp- 

 shinned hawk, and the great horned owl are real pests. 



The GallincB (fowls) include quail, partridges, grouse, pheas- 



FlG. 221. 



Pig. 221. GrciL hornc-d-owl (Bubo virginianus virgitiianu^). Young. Photographed from life by 



Dr. R. W. Shufeldt. 



Questions on the figure. — Compare the young at all points with the adult. 

 What are the points of difference? Of manifest likeness? 



ants, turkeys, peafowls, and the various kinds of chickens. 

 These birds have a plump, characteristic form. The legs are 

 mostly short or of medium length and armed with short, blunt 

 claws. The beak is stout and bent slightly downward at the 



