Data Zone
The site was identified as important 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 List1 | Season | Year(s) | Size | IBA criteria |
|---|---|---|---|---|---|
| Buller's Albatross Thalassarche bulleri | NT | breeding | 1994-1996 | 2,150 breeding pairs | A1, A4ii |
| Pitt Island Shag Phalacrocorax featherstoni | EN | breeding | 1965-2011 | 40-71 nests | A1, A4i |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2014) may differ.
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.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2014 | not assessed | low | not assessed |
| Whole site assessed? | State assessed by | Accuracy of information | |
| no | unset | - | |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Biological resource use | happening now | some of area/population (10-49%) | no or imperceptible deterioration | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Protected areas | Management plan | Other action | Result |
| Not assessed | Not assessed | Not assessed | not assessed |
| Habitat1 | Habitat detail | % of IBA |
|---|---|---|
| Marine Coastal/Supratidal | major (>10) | |
| Marine Intertidal | major (>10) | |
| Shrubland | minor (<10) |
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 23/11/2024.