Species at Risk in St. Williams Conservation Reserve
A “species at risk” is any naturally-occurring plant or animal in danger of extinction or of disappearing from the province. Once classified as “at risk”, they are added to the Species at Risk in Ontario (SARO) List.
The St. Williams Conservation Reserve is centred in the middle of the Carolinian Life Zone, which makes up only 1% of Canada’s total land area but boasts a greater number of both flora and fauna species than any other ecosystem in Canada. It is also the province’s most threatened ecological region. Over 125 species at risk live in the Carolinian Life Zone and another 400 are considered either provincially and/or globally “rare”.
The St. Williams Conservation Reserve is an important area in that its forests, oak savannah, sand dunes, ravines, wetlands, and streams are home to the 23 species at risk, which includes 7 plant, 1 insect, 1 amphibian, 12 bird and 2 mammal species.
Pictures of each species are provided below. By clicking on the Common Name you can learn more about each species, with regards to their range, biology and threats.
Plants
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American Chestnut Castanea dentata Photo by Mary Gartshore |
Spotted Wintergreen Chimaphila maculata Photo by David White |
Eastern Flowering Dogwood Cornus florida Photo by Bernt Solymár |
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Butternut Juglans cinerea |
American Ginseng Panax quinquefolius |
Virginia Goat’s-rue Tephrosia virginiana |
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Bird’s-foot Violet Viola pedata Photo by Mary Gartshore |
Insects
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Monarch Danaus plexippus Photo by Bernt Solymár |
Frosted Elfin Callophrys irus Photo by Mary Gartshore |
Karner Blue Lycaeides melissa samuelis Photo by Mary Gartshore |
Herptiles
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Jefferson Salamander Ambystoma jeffersonianum Photo by Bernt Solymár |
Blanding's Turtle Emydoidea blandingii Photo by Bernt Solymár |
Snapping Turtle Chelydra serpentina |
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Eastern Hog-nosed Snake Heterodon platirhinos Photo by Bernt Solymár |
Milksnake Lampropeltis triangulum Photo by Bernt Solymár |
Gray Ratsnake Pantherophis spiloides Photo by Mike Oldham |
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Eastern Fox Snake Pantherophis gloydi Photo by Al Woodliffe |
Birds
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Whip-poor-will Caprimulgus vociferus |
Common Nighthawk Chordeiles minor |
Chimney Swift Chaetura pelagica |
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Prothonotary Warbler Protonotaria citrea Photo by Michael Patrikeev |
Hooded Warbler Wilsonia citrina Photo by George Pond |
Cerulean Warbler Dendroica cerulea |
![]() Bobolink Dolichonyx oryzivorus |
Acadian Flycatcher Empidonax virescens Photo by George Pond |
Red-headed Woodpecker Melanerpes erythrocephalus Photo by George Pond |
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Louisiana Waterthrush Seiurus motacilla |
Golden-winged Warbler Vermivora chrysoptera Photo by George Pond |
Canada Warbler Wilsonia canadensis Photo by George Pond |
Mammals
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Woodland Vole Microtis pinetorum |
American Badger Taxidea taxus Photo by Ron Ridout |
Report any sightings of Species at Risk in SWCR
Use this sightings report form to report your observations of Species at Risk or other rare species in the St. Williams Conservation Reserve. The information you provide will be sent to the St. Williams Conservation Reserve (SWCR) Community Council and be shared with the Ministry of Natural Resources but otherwise remain confidential. Reptile-at-risk sightings will also be shared with the Long Point Basin Land Trust’s Conserving Carolinian Reptiles program.
Please use discretion about telling others about the locations of any species that are vulnerable to disturbance. For example, do not give exact locations for at-risk reptiles or nesting sites of rare birds.
Thank you for helping us better protect Species at Risk in the SWCR!


