Kauaʻi record · kba_bird_northern_harrier
Northern Harrier
Circus hudsonius
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About Northern Harrier
Northern Harrier (Circus hudsonius) is recorded as a vagrant on Kauaʻi in the Bishop Museum's 2017 island checklist. This is a documented island occurrence, not a claim of an individual sighting in 2026.
Kauaʻi evidence
Bishop Museum island checklist (version 2, 2017) lists Kauaʻi status V: vagrant. See original island table. A Hawaiʻi-level record is available, but the species needs a documented Kauaʻi observation before local ecological conclusions are drawn.
Occurrence evidence
bishop_island_checklist_2017
Names and classification
- Scientific name
- Circus hudsonius
- Common names
- Northern Harrier
- Record type
- Species
Kauaʻi occurrence and status
- Kauaʻi occurrence
- Kauaʻi documented: vagrant (2017 island checklist)
- Origin
- Indigenous visitor
- Conservation status
- Not assessed
- Evidence date
- 2026-09-13
- Evidence limits
- Island occurrence supported by the 2017 checklist; abundance and current year presence are not established here
Habitat and ecology
- Habitats
- Forest · Coastal habitat · Cliffs
- Food and resource needs
- Food and resources may include vertebrate prey, large insects, fish, birds, rodents, reptiles, carrion, or nocturnal prey according to predator type
- Reproduction
- Breeding on Kauaʻi is not established; seasonal resting and foraging habitat may be relevant.
- Shelter
- Shelter and structure within forest, coastal habitat, cliffs.
Threats and conservation
- Threats
- Record review and confusion with other gliding raptors
- Conservation actions
- Document date, place, observer, habitat, and supporting media · Confirm identification and Kauaʻi occurrence before local conservation use
- Monitoring
- Document date, place, observer, habitat, behavior, and supporting media for any Kauaʻi observation.
- Data gaps
- Update island status with dated contemporary records · Specific Kauaʻi habitat and abundance need local evidence
Process and seasonal context
- Seasonal timing
- Migrant Or Vagrant Raptor Watchlist
- Seasonal description
- Northern Harrier (Circus hudsonius) is recorded as a vagrant on Kauaʻi in the Bishop Museum's 2017 island checklist. This is a documented island occurrence, not a claim of an individual sighting in 2026.