COSEWIC Assessments

COSEWIC Assessment Summary and Status Report: Chestnut–collared Longspur Calcarius ornatus

Assessment Summary – November 2009

Common name
Chestnut–collared Longspur

Scientific name
Calcarius ornatus


Reason for designation
This species is a native prairie grassland specialist that occurs in Alberta, Saskatchewan and Manitoba. The species has suffered severe population declines since the late 1960s, and the results of several surveys suggest that the declines have continued over the last decades albeit at a slower rate. The species is threatened by habitat loss and fragmentation from road development associated with the energy sector.

Alberta, Saskatchewan, Manitoba

Status history
Designated Threatened in November 2009.


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Contact Person(s)

COSEWIC Secretariat
c/o Canadian Wildlife Service
Environment Canada
Ottawa, ON
K1A 0H3
Tel: 819-938-4125
Fax: 819-938-3984
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Related Species


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