Knot rufa subspecies, Red | Calidris canutus rufa
Last Examination and Change: April 2007 (New)
Canadian Occurrence: NT, NU, BC, AB, SK, MB, ON, QC, NB, PE, NS, NL
Status Criteria: A2b
Reason for Designation: This subspecies is a medium-sized shorebird that breeds only in Arctic Canada and migrates thousands of kilometres between its Arctic breeding grounds and wintering areas at the tip of South America. The subspecies has shown a 70% decline in abundance over the past three generations (15 years). It is threatened by a depletion of horseshoe crab eggs, a critical food source used during northern migration. There is no potential for rescue from other populations.
Status History: Designated Endangered in April 2007.
Find out more about this species on the Species at Risk Act Public Registry
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