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

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.

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 (beyond 4 years)	majority/most of area/population (50-90%)	very rapid to severe deterioration	high
Geological events	likely in long term (beyond 4 years)	majority/most of area/population (50-90%)	very rapid to severe deterioration	high
Climate change and severe weather	likely in long term (beyond 4 years)	small area/few individuals (<10%)	very rapid to severe 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

Year	Protected Area	Designation	% overlap with IBA
1934	Kermadec Islands (All Islands)	Nature Reserve	100
1990	Kermadec Islands	Marine Reserve	6
2007	Kermadec	Benthic Protection Area	100

Habitat1	Habitat detail	% of IBA
Marine Coastal/Supratidal		major (>10)
Marine Intertidal		major (>10)
Shrubland		major (>10)
Forest		minor (<10)

1. IUCN Habitat classification.

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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 24/11/2024.