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NATURAL HISTORY, TORONTO REGION

  1. Short-eared Owl. Asio flammeus. Regular migrant, sometimes abundant.

  2. Barred Owl. Strix varia varia. Regular migrant, sometimes common, rather rare winter resident.

  3. Great Gray Owl. Scotiaptex nebulosa nebu-

losa. Irregular winter migrant, sometimes common.

  1. Richardson's Owl. Cryptoglaux funerea rich-

ardsoni. Irregular winter migrant, rare.

  1. Saw-whet Owl. Cryptoglaux acadica acadica. Regular fall migrant, sometimes common, rare resident; probably breeds.

  2. Screech Owl. Otus asio asio. Regular migrant, sometimes common.

  3. Great Horned Owl. Bubo virginianus virginianus. Winter resident, usually common, rare resident; breeds.

  4. Arctic Horned Owl. Bubo virginianus subarcticus. Rare migrant.

  5. Labrador Horned Owl. Bubo virginianus heterocnemis. Rare migrant.

  6. Snowy Owl. Nyctea nyctea. Regular win-ter migrant, sometimes common.

  7. Hawk Owl. Surnia ulula caparoch. Irregular winter migrant, rare.

Family CUOULIDAE.

  1. Yellow-billed Cuckoo. Coccyzus americanus americanus. Summer resident, not very common; breeds.

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