Minister Response: COSEWIC species at risk assessments - January 2026

Official title: The Minister of the Environment's Response to Species at Risk Assessments submitted by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) on October 16, 2025

Table 1. Terrestrial species assessed by COSEWIC and eligible for addition to Schedule 1 of the Species at Risk Act (8 species)
Normal consultations: until May 14, 2026; Extended consultations: until October 14, 2026

Table 1
Taxon COSEWIC status Species Scientific name Range Consultation path
Arthropods Endangered Valley Grasshopper Oedaleonotus enigma BC Normal
Birds Endangered Short-billed Dowitcher caurinus subspecies Limnodromus griseus caurinus YT, BC Extended
Lichens Endangered Cupped Fringe Lichen Heterodermia hypoleuca ON, QC, NB Normal
Molluscs Endangered Big-tooth Whitelip Neohelix dentifera ON, QC Normal
Mosses Endangered Circular-leaved Peat Moss Sphagnum cyclophyllum NS Normal
Vascular Plants Endangered Short-fruited Rush Juncus brachycarpus ON Normal
Birds Threatened Short-billed Dowitcher hendersoni/griseus Limnodromus griseus hendersoni/griseus NT, AB, SK, MB, ON, QC, NB, NS, PE, NL, NU Extended
Birds Threatened Snowy Owl Bubo scandiacus YT, NT, NU, BC, AB, SK, MB, ON, QC, NB, NS, PE, NL Extended

Table 2. Terrestrial species assessed by COSEWIC and eligible for reclassification (3 species) or removal (1 species) from Schedule 1 of the Species at Risk Act

Table 2

Taxon

Proposed change to Schedule 1 status

Species

Scientific name

Range

Consultation pathFootnote 1

Reptiles

From Endangered to Threatened

Butler's Gartersnake

Thamnophis butleri

ON

Not ApplicableFootnote 1

Birds

From Threatened to Special Concern

Least Bittern

Botaurus exilis

SK, MB, ON, QC, NB, NS, PE

Extended

Arthropods

From Endangered to Data Deficient

Macropis Cuckoo Bee

Epeoloides pilosulus

AB, SK, MB, ON, QC, NB, NS

Normal

Reptiles

Merge from one Endangered and one Threatened species to one Threatened species

Eastern MassasaugaFootnote 2

Sistrurus catenatus

ON

Not Applicable1

Table 3. Terrestrial species on Schedule 1 and recently reassessed by COSEWIC with the same status - status confirmation (no consultations) (3 species)

Table 3

Taxon

COSEWIC status

Species

Scientific name

Range

Mosses

Endangered

Roell's Brotherella Moss

Brotherella roellii

BC

Birds

Threatened

Lewis's Woodpecker

Melanerpes lewis

BC, AB

Mammals

Threatened

Black-tailed Prairie Dog

Cynomys ludovicianus

SK

Table 4. Aquatic species assessed by COSEWIC and eligible for addition to Schedule 1 of the Species at Risk Act, with consultations to be conducted by Fisheries and Oceans Canada (4 species).

Table 4

Taxon

COSEWIC status

Species

Scientific name

Range

Consultation path

Echinodermata

Endangered

Sunflower Sea Star

Pycnopodia helianthoides

BC, Pacific Ocean

Extended

Fishes (freshwater)

Special Concern

Bull Trout (Pacific population)

Salvelinus confluentus

BC

Normal

Fishes (marine)

Special Concern

Greenland Shark

Somniosus microcephalus

NU, QC, NB, NS, PE, NL, Arctic Ocean, Atlantic Ocean

Extended

Mammals (marine)

Special Concern

Northern Bottlenose Whale (Davis Strait-Baffin Bay-Labrador Sea population)

Hyperoodon ampullatus

NU, NL, Atlantic Ocean

Addition to Schedule 1 for which there will be no further consultationsFootnote 3

Table 5. Aquatic species assessed by COSEWIC and eligible for reclassification on Schedule 1 of the Species at Risk Act, with consultations to be conducted by Fisheries and Oceans Canada (2 species).

Normal consultations: until March 14, 2026

Table 5

Taxon

Proposed change to Schedule 1 status

Species

Scientific name

Range

Consultation path

Fishes (freshwater)

From Threatened to Endangered

Pugnose Minnow

Opsopoeodus emiliae

ON

Normal

Molluscs

From Endangered to Special Concern

Lilliput

Toxolasma parvum

ON

Normal

Table 6. Aquatic species recently reassessed by COSEWIC with the same status - status confirmation (no consultations) (4 species)

Table 6

Taxon

COSEWIC status

Species

Scientific name

Range

Mammals (marine)

Endangered

Northern Bottlenose Whale (Scotian Shelf population)

Hyperoodon ampullatus

NS, NL, Atlantic Ocean

Fishes (freshwater)

Threatened

Bull Trout (Saskatchewan - Nelson Rivers population)

Salvelinus confluentus

AB

Fishes (freshwater)

Special Concern

Bull Trout (South Coast British Columbia population)

Salvelinus confluentus

BC

Fishes (freshwater)

Special Concern

Bull Trout (Western Arctic population)

Salvelinus confluentus

YT, NT, BC, AB

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2026-01-14