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The site was identified as internationally important for bird conservation in 2009 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
Malleefowl Leipoa ocellata	VU	resident (1994–2008)	frequent	A1
Inland Dotterel Peltohyas australis	LC	resident (1998–2008)	rare	A3
Western Corella Cacatua pastinator	LC	resident (1998–2008)	uncommon	A2, A3
Bourke's Parrot Neopsephotus bourkii	LC	resident (1998–2008)	uncommon	A3
Regent Parrot Polytelis anthopeplus	LC	resident (1998–2008)	frequent	A3
Rufous Treecreeper Climacteris rufus	LC	resident (1998–2008)	frequent	A3
Blue-breasted Fairywren Malurus pulcherrimus	LC	resident (1998–2008)	rare	A3
Black Honeyeater Sugomel nigrum	LC	resident (1998–2008)	uncommon	A3
Pied Honeyeater Certhionyx variegatus	LC	resident (1998–2008)	uncommon	A3
Slaty-backed Thornbill Acanthiza robustirostris	LC	resident (1998–2008)	rare	A3
Chiming Wedgebill Psophodes occidentalis	LC	resident (1998–2008)	rare	A3
Western Yellow Robin Eopsaltria griseogularis	LC	resident (1998–2008)	uncommon	A3

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2009. The most recent assessment (2008) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Natural system modifications	happe­ning now	most of popul­ation/area (50–90%)	slow decline (1–10% over 3 gener­ations)	high
Invasive and other problematic species and genes	happe­ning now	most of popul­ation/area (50–90%)	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

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Charles Darwin	Conservation Reserve (II)	28
-	Charles Darwin	Reserve (-)	29

Habitat	% of IBA	Habitat detail
Shrubland	75	Acacia shrublands
Savanna	22	Eucalypt open woodlands
Grassland	3

Land use	% of IBA
nature conservation and research	80
not utilised	20

Charles Darwin Reserve is managed by Bush Heritage Australia, Mount Gibson Station is managed by Australian Wildlife Conservancy, unallocated Crown Land is vested in the state government.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Mount Gibson and Charles Darwin (Australia). Downloaded from https://datazone.birdlife.org/site/factsheet/mount-gibson-and-charles-darwin-iba-australia on 06/12/2024.