Kauaʻi record · kba_bird_brown_booby
Brown Booby
Sula leucogaster
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About Brown Booby
Brown Booby (Sula leucogaster) is recorded as a breeding 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 B: breeding 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 leucogaster
- Common names
- Brown Booby
- Family
- Sulidae
- Order
- Suliformes
- Record type
- Species
Kauaʻi occurrence and status
- Kauaʻi occurrence
- Kauaʻi documented: breeding 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
- Shorelines · Cliffs
- Food and resource needs
- Nearshore plunge diver feeding on flying fish, squid, mackerel scad, juvenile goatfish, and anchovy
- Reproduction
- Suitable nesting or roosting sites, seasonal food, and protection from disturbance and predators.
- Shelter
- Shelter and structure within shorelines, cliffs.
Threats and conservation
- Threats
- Rats and feral cats at nesting sites, human disturbance, habitat degradation, and overfishing effects through predatory-fish prey availability
- Conservation actions
- Protect offshore islets and coastal roosting/foraging zones, maintain predator control, reduce disturbance, and track nearshore feeding conditions
- 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
- Nearshore Kauai Presence And Offshore Islet Breeding Context
- Seasonal description
- Brown Booby (Sula leucogaster) is recorded as a breeding 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.