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.

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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Federal Species-At-Risk in Thousand Islands National Park, Ontario, Canada

Endangered
American Ginseng
Blunt-lobed Woodsia
Butternut
Eastern Loggerhead Shrike
Eastern Prairie Fringed Orchid
Henslow's Sparrow
King Rail
Northern Bobwhite

Threatened
Blanding's Turtle
Deerberry
Eastern Rat Snake
Golden-Winged Warbler
Least Bittern
Peregrine Falcon
Pugnose Shiner
Stinkpot Turtle

Special Concern
American Eel
Bridle Shiner
Broad Beech Fern
Cerulean Warbler
Eastern Milksnake
Eastern Yellow Breasted Chat
Five-Lined Skink
Grass Pickerel
Lake Sturgeon
Monarch Butterfly
Northern Map Turtle
Northern Ribbonsnake
Red Headed Woodpecker
Short-Eared Owl
Yellow Rail

Canada
Federal Species at Risk Registry
​Ontario Species at Risk

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

Blanding's Turtle, threatened in Ontario and  New York.

Peregrine Falcon, threatened in Ontario,
endangered in New York.

Karner Blue Butterfly, extirpated in Ontario, endangered in New York.
> Ontario Nature's "The case of the blue butterfly"

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