BIRDS OF ONTARIO. 29 
A summer resident, put not nearly so abundantas the last. Breeds 
in the interior of the Province. 
A very destructive hawk. 
Suscenus 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 
every 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.) 
Common 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. 
SuscEenus TACHYTRIORCHIS. 
138. Swainson’s 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.) 
