Algonquin to Adirondacks Collaborative

Wildlife

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The A2A region is home to an extraordinary array of wildlife, including many rare and endangered species. From beavers to opossums, turtles to salamanders, and moose to bobcats, this corridor plays a vital role in facilitating wildlife migration between Algonquin Park, Adirondack Park, and surrounding areas.
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​A safe haven for at-risk species

We can safeguard this critical corridor for thousands of species. But we can't do it alone.
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As one of the last remaining large-scale, intact forest and wetland linkages in eastern North America, the A2A region offers the best remaining potential for wildlife movement across the Great Lakes-St. Lawrence system.

The Thousand Islands-Frontenac region, situated at the pinch-point of the A2A corridor, boasts exceptional biodiversity. Its location at the intersection of two major migrational pathways—the Frontenac Arch and the St. Lawrence River Valley—contributes to its richness. Here, five diverse forest regions converge, creating a myriad of habitats and ample opportunities for different species. The region's complex geology, rugged terrain, and unique climatic conditions further enhance its ecological diversity, making it a refuge for many species at risk.

By conserving, connecting, and enhancing landscapes within the A2A region, we can safeguard this critical corridor and bolster its ecological integrity. Doing so will ensure that wildlife have the freedom to roam, mate, find food, and carry out their lives undisturbed.
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Learn more about species at risk in the A2A region

    Canada
    Federal Species at Risk Registry
​
     Ontario Species at Risk

    U.S
    Federal Endangered Species List
     N.Y. State Endangered Species List


Species-At-Risk in Thousand Islands National Park, Ontario, Canada
Endangered
American Ginseng
Butternut
Cerulean Warbler
Eastern Loggerhead Shrike
Eastern Prairie Fringed Orchid
Henslow's Sparrow
King Rail
Little Brown Myotis
Northern Bobwhite
Northern Myotis
Pale-bellied Frost Lichen
Spotted Turtle
Tri-colored Bat
Yellow-breasted Chat
Threatened
American eel
American water-willow
Bank Swallow
Barn Swallow
Black Ash
Blanding's Turtle
Blunt-lobed Woodsia
Bobolink
Canada Warbler
Chimney Swift
Common Nighthawk
Deerberry
Eastern Meadowlark
Golden- Winged Warbler
Gray Ratsnake
Least Bittern
Lesser Yellowlegs
Olive-sided Flycatcher
Pugnose Shiner
Red Headed Woodpecker
Western Chorus Frog
Whip-poor-will
Wood Thrush
Grey Fox
Spiny Softshell
Special Concern
Bridle Shiner
Broad Beech Fern
Eastern Musk Turtle
Eastern Ribbonsnake
Eastern Wood Pewee
Five- Lined Skink
Grass Pickerel
Horned Grebe
Lake Sturgeon
Louisiana Waterthrush
Midland Painted Turtle
Milksnake
Monarch Butterfly
Northern Map Turtle
Peregrine Falcon (anatum)
Rusty Blackbird
Short-Eared Owl
Silver Lamprey
Snapping Turtle
Swamp Rose Mallow
Yellow Rail
Yellow-Banded Bumble bee​

resources

Ontario Reptile and Amphibian Atlas
Did you know that in Ontario, 75% of reptiles and 35% of amphibians are listed as nationally and provincially at risk?
Ontario Nature's ORAA publication contains current knowledge of the distribution of reptiles and amphibians in Ontario, including more than 60 species of turtles, salamanders, snakes and other herptiles. This publication will help inform ongoing conservation work and increase public awareness and appreciation of Ontario's herptiles and their plight. Check it out today! ​
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iNaturalist Project: Wildlife on Roads in Ontario
Roads pose a serious threat to wildlife. There is no point in Southern Ontario further than 1.5 km from a road. 
Historical trends have shown that Ontario’s road network has increased five-fold between 1935 and 1995, and will continue to expand in order to meet the demands of an estimated 30% population growth by 2031. While road mortality has been well-documented for amphibians, turtles, and snakes, less is known about the impacts on mammals and birds. Effective solutions like wildlife crossing structures and fencing can reduce roadkill and landscape fragmentation, but require precise, species-specific data. Although road agencies collect data mainly on large mammals, citizen science is filling in crucial gaps, especially for smaller animals. This iNaturalist project equips citizen scientists and road workers with tools to collect data that will inform road impact assessments and improve wildlife conservation efforts. Start contributing today!

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Funky Fish Guide
Have you ever caught an odd-looking fish and wondered what was wrong with it?
The Funky Fish Guide, developed by The St. Lawrence River (Cornwall/Akwesasne) Remedial Action Plan team, is a valuable resource for identifying and understanding abnormalities in fish from the St. Lawrence River and its tributaries. It helps anglers, biologists, and environmental enthusiasts recognize unusual fish conditions, explore their causes, and learn about the health of local aquatic ecosystems. By sharing photos of any "funky fish" you encounter, you can contribute to raising awareness and supporting conservation efforts. Share your pictures for the chance to get featured in future editions and on social media. Get your Funky Fish Guide today!
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© 2025 Algonquin to Adirondacks Collaborative
A2A is a 149(1)(f) registered Canadian charity | BN: 86307 1668 RR0001 | and a 501(c)(3) tax-exempt organization in the U.S. | IRS #86-1358996 |
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  • Home
    • What Is A2A?
    • Recent News
  • About
    • Connectivity
    • Alice the Moose
    • Board & Staff
    • FAQs
  • Landscape
    • Wildlife
    • Protected Areas
  • Our Work
    • A2A Trail >
      • The A2A Trail Guide
      • A2A Trek 2023
    • Mapping
    • Road Ecology >
      • Highway 401
      • Road Mitigation Project in UCLG
    • Science Symposium
  • Get Involved
    • Become a Trail Champion
    • Join A2A
    • Volunteer
    • Contact Us
  • Donate
    • Legacy Giving
  • Resources
    • Publications
    • For Landowners
    • Annual Reports
    • Media
  • Partners
  • SIGN UP
  • Shop