LC
Hen Harrier Circus cyaneus



Family: Accipitridae (Hawks, Eagles)

Authority: (Linnaeus, 1766)

Red List Category

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Justification of Red List category
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (extent of occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population size does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). Although the population is suspected to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds under the population trend criterion (>30% decline over ten years or three generations). For these reasons the species is evaluated as Least Concern.

Population size: 330000-512000 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 34,800,000 km2

Country endemic: no

Attributes
Raptors MOU

Recommended citation
BirdLife International (2024) Species factsheet: Circus cyaneus. Downloaded from https://datazone.birdlife.org/species/factsheet/hen-harrier-circus-cyaneus on 19/03/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org on 19/03/2024.