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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
Black-winged Petrel Pterodroma nigripennis	LC	breeding (1988)	2,500,000 pairs	A4ii
White-necked Petrel Pterodroma cervicalis	VU	breeding (1988)	50,000 pairs	A1, A4ii
Wedge-tailed Shearwater Ardenna pacifica	LC	breeding (1988)	40,000 pairs	A4ii
Procelsterna cerulea	NR	breeding (1988)	10,000	A4i
A4iii Species group - seabirds	n/a	breeding (1988)	2,500,000-4,999,999 pairs	A4iii

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
Invasive and other problematic species and genes	likely in long term (>4 years)	most of popul­ation/area (50–90%)	rapid decline (>30% over 3 gener­ations)	high
Geological events	likely in long term (>4 years)	most of popul­ation/area (50–90%)	rapid decline (>30% over 3 gener­ations)	high
Climate change and severe weather	likely in long term (>4 years)	few indivi­duals/small area (<10%)	rapid decline (>30% 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

Year	Protected Area	Designation (management category)	% coverage of IBA
1934	Kermadec Islands (All Islands)	Nature Reserve (Ia)	100
1990	Kermadec Islands	Marine Reserve (Ia)	6
2007	Kermadec	Benthic Protection Area (VI)	100

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

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Macauley & Haszard Islands (New Zealand). Downloaded from https://datazone.birdlife.org/site/factsheet/macauley-&-haszard-islands-iba-new-zealand on 26/12/2024.