NATURAL HISTORY, TORONTO REGION 
116. Canadian Ruffed Grouse. Bonasa umbellus 
togata. Resident, becoming very rare; breeds. 
Family CotumBmas. 
117. Passenger Pigeon. Lctopistes migratorius. 
Extinct, once an abundant migrant; formerly bred. 
118. Mourning Dove. Zenaidura macroura carol- 
inensis. Summer resident, not common; breeds. 
Family CaTHartTipar. 
119. Turkey Vulture. Cathartes aura septentrio- 
nalis. Accidental, one recent record. 
Family Burronipaz, 
120. Marsh Hawk. Circus hudsonius. Regular 
migrant, common, rare summer resident; breeds. 
121. Sharp-shinned Hawk. Accipiter velox. Com- 
mon migrant, rare resident; breeds. 
122. Cooper’s Hawk. Accipiter cooperi. Rare 
migrant, rare winter resident. 
123, Goshawk. Astur atricapillus atricapillus. 
Regular fall migrant, sometimes common, rare win- 
ter resident. 
124. Red-tailed Hawk. Buteo borealis borealis. 
Common fall migrant; probably breeds. 
125. Western Red-tail. Buteo borealis calurus. 
Accidental, one record. 
126. Red-shouldered Hawk. Buteo lineatus linea- 
tus. Common migrant, rare, resident; breeds. 
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