Chestnut-collared Longspur Calcarius ornatus

Family: Calcariidae (Longspurs)

Authority: (Townsend, 1837)

Red List Category

Criteria: A2bc+3bc+4bc

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Justification of Red List category
This species appears to have undergone a rapid decline, which is suspected to continue into the future. Therefore, it is listed as Vulnerable.

Population size: 3100000 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 1,150,000 km2

Country endemic: no

Realm - Nearctic
Realm - Neotropical
Land-mass type - continent
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2023) Species factsheet: Calcarius ornatus. Downloaded from on 29/11/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from on 29/11/2023.