KI002
Nikumaroro (Gardner Island)


IBA Justification

The site was identified as internationally important for bird conservation in 2008 because it was regularly supporting significant populations of the species listed below, meeting IBA criteria.

Populations meeting IBA criteria ('key species') at the site:
Species Red List Season (year/s of estimate) Size IBA criteria
Red-tailed Tropicbird Phaethon rubricauda LC breeding (2006) 100 breeding pairs A4ii

IBA Conservation

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2008. The most recent assessment (2007) is shown below.

IBA conservation status
Year of assessment State Pressure Response
2007 favourable low not assessed
Whole site assessed? State assessed by Accuracy of information
no population -

State (condition of the key species' populations)
Species Actual vs Reference (units) % remaining Result
Red-tailed Tropicbird Phaethon rubricauda 100 / 100 (breeding pairs) 100 favourable

Pressure (threats to the key species and/or their habitats)
Threat Timing Scope Severity Result
Invasive and other problematic species and genes happen­ing now whole popul­ation/area (>90%) no deteri­oration (<1% over 3 gener­ations) low

Response (conservation actions taken for the key species and/or their habitats)
Designation Planning Action Result
Not assessed Not assessed Not assessed not assessed

IBA Protection

Year Protected Area Designation (management category) % coverage of IBA
2010 Phoenix Islands Protected Area World Heritage Site (natural or mixed) (UA) 100


Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Nikumaroro (Gardner Island) (Kiribati). Downloaded from https://datazone.birdlife.org/site/factsheet/nikumaroro-(gardner-island)-iba-kiribati on 09/01/2025.