• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

The site was identified as important in 2009 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):

Species	Current IUCN Red List Category	Season	Year(s)	Population estimate at site	IBA criteria met
Lesser Frigatebird Fregata ariel	LC	breeding	1991	7,700 breeding pairs	A4ii
Brown Booby Sula leucogaster	LC	breeding	1991	9,000-12,000 breeding pairs	A4ii

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2009).

Pressure (threats to the trigger species and/or their habitats)
Threat level 1	Threat level 2	Timing	Scope	Severity	Result
Human intrusions and disturbance	recreational activities	happening now	whole area/population (>90%)	no or imperceptible deterioration	low
Invasive and other problematic species and genes	invasive non-native/alien species/diseases - named species	happening now	majority/most of area/population (50-90%)	slow but significant deterioration	high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation	Management planning	Other conservation action	Result
Not assessed	Not assessed	Not assessed	not assessed

For more information about IBA conservation status, please click here

Protected area (PA)	PA designation	PA area (ha)	Relationship of PA with IBA	Overlap of PA with IBA (ha)
Thuwathu/Bujimulla	Indigenous Protected Area	124,966	protected area overlaps with site	0

Habitat (IUCN level 1)	Habitat detail	Extent (% of site)
Marine Neritic		-
Marine Coastal/Supratidal		-

For more information about the IUCN Habitat classification, please click here.

Land-use	Extent (% of site)
fisheries/aquaculture	-
other	-

Traditional owners are Lardil people: Rocky Island known as Kalamburriya, Manowar Island known as Delmerriya or Wudma. http://www.environment.gov.au/indigenous/publications/pubs/thuwathu-bujimulla-plan.pdf. Native title exists over the islands.

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Manowar and Rocky Islands. Downloaded from http://datazone.birdlife.org/site/factsheet/manowar-and-rocky-islands-iba-australia on 26/09/2023.