Species at Risk

At-risk Categories and Terms

Extinct: A species that no longer exists. e.g. Passenger Pigeon
Extirpated: A species that no longer exists in the wild in Canada, but occurs elsewhere. e.g. Timber Rattlesnake
Endangered: A species facing imminent extirpation or extinction. e.g. Forked Three Awned Grass
Threatened: A species that is likely to become endangered if limiting factors are not reversed. e.g. Least Bittern
Special Concern: A species of special concern because of characteristics that make it particularly sensitive to human activities or natural events. e.g. Northern Brook Lamprey
Not At Risk: A species that has been evaluated and found to be not at risk. e.g. Pickerel Frog
Data Deficient: A species for which there is insufficient scientific information to support status designation.
COSEWIC (Committee on the Status of Endangered Wildlife in Canada): a committee of experts that determines the national status of native species that are thought to be at risk of disappearing from Canada. Members include university academics, independent specialists, Aboriginal people or government, museum or independent biologists who volunteer.
COSSARO (Committee on the Status of Species at Risk in Ontario): reviews the COSEWIC status reports for those species that occur in Ontario. COSSARO then makes recommendations to the OMNR on the appropriate provincial status of the species. Provincial status designations are then identified on the OMNR’s Species at Risk in Ontario (SARO) List.


Our YouTube account has two species at-risk videos:

  1. At-risk Turtles, Snakes and Frogs of Georgian Bay
  2. Working in Massasauga Habitat

Species at Risk in the Parry Sound – Muskoka District (prepared by MNR)

Best Management Practices for Public Works Departments within the GBBR

Species-at-Risk in the Georgian Bay Biosphere Reserve:


  1. Western Chorus Frog
Birds Birds

  1. Bald Eagle
  2. Barn Swallow
  3. Black Tern
  4. Bobolink
  5. Canada Warbler
  6. Cerulean Warbler
  7. Chimney Swift
  8. Common Nighthawk
  9. Eastern Meadowlark
  10. Golden-winged Warbler
  11. Least Bittern
  12. Olive-Sided Flycatcher
  13. Red-shouldered Hawk
  14. Red Headed Woodpecker
  15. Rusty Blackbird
  16. Whip-poor-will
  17. Eastern Wood-Pewee
  18. Bank Swallow
Fish Fish

  1. Lake Sturgeon
  2. Northern Brook Lamprey
  3. Silver Lamprey
Insects Insects

  1. Monarch Butterfly
  2. West Virginia White Butterfly
Mammals Mammals

  1. Eastern Wolf
  2. Little Brown Myotis
  3. Northern Myotis
  4. Tri-coloured Bat
  5. Eastern Small-footed Bat
Plants Plants

  1. Branched Bartonia
  2. Broad Beech Fern
  3. Butternut
  4. Engelmann’s Quillwort
  5. Forked Three Awned Grass
Reptiles Reptiles

  1. Blanding’s Turtle
  2. Common Map Turtle
  3. Common Snapping Turtle
  4. Eastern Foxsnake
  5. Eastern Hog-nosed Snake
  6. Eastern Milksnake
  7. Eastern Musk Turtle
  8. Five-lined Skink
  9. Massasauga Rattlesnake
  10. Northern Ribbonsnake
  11. Spotted Turtle