Kauaʻi record · kba_bird_masked_booby
Masked Booby
Sula dactylatra
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About Masked Booby
Masked Booby (Sula dactylatra) 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. The record includes Kauaʻi-specific or clearly defined regional evidence appropriate to its stated occurrence status.
Occurrence evidence
bishop_island_checklist_2017
Names and classification
- Scientific name
- Sula dactylatra
- Common names
- Masked Booby
- Family
- Sulidae
- Order
- Suliformes
- 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
- Cliffs
- Food and resource needs
- Diet in Hawaii is almost entirely fish, primarily flyingfish and jacks
- Reproduction
- Suitable nesting or roosting sites, seasonal food, and protection from disturbance and predators.
- Shelter
- Shelter and structure within cliffs.
Threats and conservation
- Threats
- Rats and feral cats at nesting sites, invasive plants reducing nesting habitat, human disturbance, and overfishing effects through predatory-fish/prey-surfacing dynamics
- Conservation actions
- Protect offshore-islet nesting sites, maintain predator-free status, control invasive plants, limit disturbance, and keep marine prey/predatory-fish relationships in the Atlas
- Monitoring
- Track occurrence, abundance, habitat condition, breeding or seasonal use, and significant threats.
- Data gaps
- Update island status with dated contemporary records · Specific Kauaʻi habitat and abundance need local evidence
Process and seasonal context
- Seasonal timing
- Hawaiian Resident Islet Breeder With Kauai Region Interface
- Seasonal description
- Masked Booby (Sula dactylatra) 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.