BIRDS OF ONTARIO. 29 



A summer resident, out not nearly so abundant as the last. Breeds 

 in the interior of the Province. 

 A very destructive hawk. 



Subgenus ASTUR. 



135. Goshawk. 



(Accipiter atricapillus.) 



A winter visitor to Southern Ontario. Probably resident in the 

 northern part of the Province. 



This hawk is capable of killing full grown fowls and does so at 

 €very opportunity. 



Genus BUTEO. 



136. Red-tailed Hawk. 



(Buteo borealis.) 



A common summer resident, breeding in the interior. Arrives 

 early in March, departs at the beginning of November. A few have 

 been seen in winter. 



A useful hawk feeding chiefly on mice, grasshoppers and frogs. 



137. Red-shouldered Hawk. 



(Buteo lineatus.) 



Ck)mmon summer resident. Less frequently seen than the last. 

 Breeds in the interior. Arrives a little later than the Red-tail, and 

 leaves towards the end of October. 



A useful hawk feeds chiefly on mice, reptiles and grasshoppers. 



Subgenus TACHYTRIORCHIS. 



138. Swainsons Hawk. 



(Buteo swainsoni.) 



A rare visitor from the western prairies where it is abundant. 



139. Broad-winged Hawk. 



(Buteo latissimus.) 



A common summer resident. Breeds through its range. A use- 

 ful species. 



Genus ARCHIBUTEO. 



140. American Rough-legged Hawk. 



(Archibuteo lagopus sancti-johannis.) 



