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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') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Australian Bustard Ardeotis australis	LC	resident	1995-2008	frequent	A1
Straw-necked Ibis Threskiornis spinicollis	LC	resident	1995-2007	10,000-12,000 individuals	A4i
White-necked Heron Ardea pacifica	LC	resident	1995-2007	500-600 individuals	A4i
Inland Dotterel Peltohyas australis	LC	resident	1995-2008	frequent	A3
Plains-wanderer Pedionomus torquatus	EN	resident	2002	rare	A1
Night Parrot Pezoporus occidentalis	CR	resident	2006	rare	A1, A3
Bourke's Parrot Neopsephotus bourkii	LC	resident	1995-2008	uncommon	A3
Black Honeyeater Sugomel nigrum	LC	resident	1995-2008	frequent	A3
Pied Honeyeater Certhionyx variegatus	LC	resident	1995-2008	common	A3
Gibberbird Ashbyia lovensis	LC	resident	1995-2008	common	A3
Hall's Babbler Pomatostomus halli	LC	resident	1995-2008	common	A3
Chestnut-breasted Quail-thrush Cinclosoma castaneothorax	LC	resident	1998-2008	rare	A3
Cinnamon Quail-thrush Cinclosoma cinnamomeum	LC	resident	1995-2007	uncommon	A3
Spinifexbird Poodytes carteri	LC	resident	1998-2008	rare	A3

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2009) may differ.

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
Invasive and other problematic species and genes	happening now	majority/most of area/population (50-90%)	slow but significant deterioration	high
Agricultural expansion and intensification	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Natural system modifications	happening now	whole area/population (>90%)	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

Year	Protected Area	Designation	% overlap with IBA
1996	Diamantina	National Park	66
1999	Astrebla Downs	National Park	23

Habitat1	Habitat detail	% of IBA
Desert	Semi-desert (includes gibber plains)	major (>10)
Grassland	Tussock grasslands	major (>10)
Savanna	Acacia open woodlands, Eucalypt open woodlands	major (>10)
Shrubland	Chenopod shrubs, samphire shrubs and forblands, Other shrublands	minor (<10)
Wetlands (inland)	Riverine floodplains	minor (<10)

1. IUCN Habitat classification.

Land use	% of IBA
nature conservation and research	major (>10)
rangeland/pastureland	major (>10)

Queensland EPA; privately-owned stations.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Diamantina and Astrebla Grasslands (Australia). Downloaded from https://datazone.birdlife.org/site/factsheet/diamantina-and-astrebla-grasslands-iba-australia on 22/11/2024.