Species At Risk

Perth

Willowleaf Aster
Milksnake
Chimney Swift

Species at risk in Perth region

Birds

Black Tern
Black Tern (Chlidonias niger)
special concern
The Black Tern is very social. It breeds in loose colonies and usually forages, roosts and migrates in flocks of a few to more than 100 birds, occasionally up to tens of thousands.
Bobolink
Bobolink (Dolichonyx oryzivorus)
threatened
These birds migrate from Ontario to Argentina - one of the longest migrations of any North American songbird.
Chimney Swift
Chimney Swift (Chaetura pelagica)
threatened
These birds breed and roost in chimneys as well as other manmade structures, including air vents, old open wells, outhouses, abandoned cisterns and lighthouses.
Yellow-breasted Chat
Yellow-breasted Chat (Icteria virens)
endangered
The Yellow-breasted Chat's song consists of a weird assortment of clicks, whistles ands even chuckles.

Fish

Black Redhorse
Black Redhorse (Moxostoma duquesnei)
threatened
During the breeding season, the body colour of the male Black Redhorse changes from bluish-silver to a darker greenish-black.
Northern Brook Lamprey
Northern Brook Lamprey (Ichthyomyzon fossor)
special concern
Unlike some other lamprey species, the Northern Brook Lamprey is non-parasitic and does not attach itself to larger host fish. The larvae are filter-feeders, consuming microscopic plant and animal life and decaying matter. Adults have a non-functional intestine and do not feed.
Redside Dace
Redside Dace (Clinostomus elongatus)
endangered
Redside dace are the only fish in Canada with the ability to jump out of the water to eat.
Silver Shiner
Silver Shiner (Notropis photogenis)
special concern
Silver Shiners are easily confused with Emerald Shiners and Rosyface Shiners, which may have contributed to the fact that they were only confirmed in Canada in 1973, but may have always been present.

Mussels

Wavy-rayed Lampmussel
Wavy-rayed Lampmussel (Lampsilis fasciola)
threatened
The Wavy-rayed Lampmussel can fish. To attract a fish host that its parasitic larvae can attach to, the female produces a lure that looks like a wriggling minnow. When a fooled fish attacks the lure, the mussel ejects its larvae, which have a better chance of attaching to the host at such a close distance.

Plants

Willowleaf Aster
Willowleaf Aster (Symphyotrichum praealtum)
threatened
Aboriginal people used Willowleaf Aster to treat stomach aches and injuries. They also smoked the dried leaves for good luck while hunting.

Snakes

Milksnake
Milksnake (Lampropeltis triangulum)
special concern
The Milksnake got its name from the false belief that it takes milk from cows in barns, which it often inhabits. Milksnakes cannot drink milk, and are attracted to barns by the abundance of mice.

Turtles

Northern Map Turtle
Northern Map Turtle (Graptemys geographica)
special concern
The Northern Map Turtle is extremely wary and will dive into the water at the slightest provocation.
Snapping Turtle
Snapping Turtle (Chelydra serpentina)
special concern
These turtles spend so much time underwater that algae grow on their shells. This helps them blend in with their surroundings.
Spiny Softshell
Spiny Softshell (Apalone spinifera)
threatened
The Spiny Softshell turtle captures crayfish and molluscs by partially burying itself underwater in the sand or mud and snatching unsuspecting prey. Its snorkel-like snout allows it to take a breath of air while submerged.

Planning work in an area with species at risk or their habitat?

Protection of species and habitat may have an impact on local planners, developers and land owners.



The Endangered Species Act


Contact your local ministry office


Often the best source of local information on species at risk is your nearest ministry office. Call with your questions or concerns.