NATURAL HISTORY, TORONTO REGION 



139. Short-eared Owl. Asio flammeus. Regular 

 migrant, sometimes abundant. 



140. Barred Owl. Strix varia varia. Regular mi- 

 grant, sometimes common, rather rare winter resi- 

 dent. 



141. Great Gray Owl. Scotiaptex nebulosa nebu- 

 losa. Irregular winter migrant, sometimes common. 



142. Richardson's Owl. Cryptoglaux funerea rich- 

 ardsoni. Irregular winter migrant, rare. 



143. Saw-whet Owl. Cryptoglaux acadica acad- 

 ica. Regular fall migrant, sometimes common, rare 

 resident ; probably breeds. 



144. Screech Owl. Otus asio asio. Regular mi- 

 grant, sometimes common. 



145. Great Horned Owl. Bubo virginianus virgini- 

 anus. Winter resident, usually common, rare resi- 

 dent; breeds. 



146. Arctic Horned Owl. Bubo virginianus sub- 

 arcticus. Rare migrant. 



147. Labrador Horned Owl. Bubo virginianus 

 heterocnemis. Rare migrant 



148. Snowy Owl. Nyctea nyctea. Regular win- 

 ter migrant, sometimes common. 



149. Hawk Owl. Surnia ulula caparoch. Irregu- 

 lar winter migrant, rare. 



Family CUCHLIDAE. 



150. Yellow-billed Cuckoo. Coccyzus americanus 

 americanus. Summer resident, not very common; 

 breeds. 



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