• Summary
• Text account
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• Reference and further resources

The site was identified as internationally important for bird conservation in 2014 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Buller's Albatross Thalassarche bulleri	NT	breeding (1994–1996)	2,150 pairs	A1, A4ii
Pitt Island Shag Phalacrocorax featherstoni	EN	breeding (1965–2011)	40–71 nests	A1, A4i

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2014. The most recent assessment (2014) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Biological resource use	happe­ning now	some of popul­ation/area (10–49%)	no or slight decline (<1% over 3 gener­ations)	low

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

Habitat	% of IBA	Habitat detail
Marine Coastal/Supratidal	major (>10)
Marine Intertidal	major (>10)
Shrubland	minor (<10)

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: The Sisters Rangitatahi (New Zealand). Downloaded from https://datazone.birdlife.org/site/factsheet/the-sisters-rangitatahi-iba-new-zealand on 28/12/2024.