Kauaʻi Conservation Atlas

Kauaʻi record · kba_bird_sooty_tern

Sooty Tern

Onychoprion fuscatus

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Sooty Tern — Adult left · juvenile right
Sooty Tern — Adult left · juvenile right · OpenAI image generation; Atlas deterministic typesetting · AI-generated artwork; no third-party photograph reproduced · Image source

About Sooty Tern

Sooty Tern (Onychoprion fuscatus) is recorded as a migrant or nonbreeding visitor 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 M: migrant or nonbreeding visitor. 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
Onychoprion fuscatus
Common names
Sooty Tern
Family
Laridae
Order
Charadriiformes
Record type
Species

Kauaʻi occurrence and status

Kauaʻi occurrence
Kauaʻi documented: migrant or nonbreeding visitor (2017 island checklist)
Origin
Indigenous
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
Marine Seabird
Food and resource needs
Squid, goatfish, flyingfish, and mackerel scad
Reproduction
Suitable nesting or roosting sites, seasonal food, and protection from disturbance and predators.
Shelter
Shelter and structure within marine seabird.

Threats and conservation

Threats
Rats, cats, native nest predators, overfishing through prey-surfacing disruption, and oil pollution
Conservation actions
Lehua social-attraction systems, predator-free biosecurity, colony monitoring, and marine prey/predatory-fish condition tracking
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
Restoration Target With Nearby Kaula Breeding Context
Seasonal description
Sooty Tern (Onychoprion fuscatus) is recorded as a migrant or nonbreeding visitor 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.

Sources and further reading

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