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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
Plumed Whistling-duck Dendrocygna eytoni	LC	resident (1999–2000)	740–14,070 birds	A4i
Hardhead Aythya australis	LC	resident (1999–2000)	1,940–98,750 birds	A4i
Brolga Grus rubicunda	LC	resident (1999–2000)	20–3,620 birds	A4i
Australian Bustard Ardeotis australis	LC	resident (1998–2008)	common	A1
Straw-necked Ibis Threskiornis spinicollis	LC	resident (1999–2000)	31,860–48,630 birds	A4i
Glossy Ibis Plegadis falcinellus	LC	resident (1999–2000)	880–26,140 birds	A4i
White-necked Heron Ardea pacifica	LC	resident (1999–2000)	1,120–1,760 birds	A4i
Bush Thick-knee Burhinus grallarius	LC	resident (1998–2008)	frequent	A1
Banded Stilt Cladorhynchus leucocephalus	LC	unknown (1999–2000)	2,670 birds	A4i
Red-necked Avocet Recurvirostra novaehollandiae	LC	non-breeding (1999–2000)	180–3,740 birds	A4i
Black-winged Stilt Himantopus himantopus	LC	resident (1999–2000)	101,760–219,520 birds	A4i
Oriental Plover Charadrius veredus	LC	non-breeding (1988–2006)	29,000–60,000 birds	A4i
Little Curlew Numenius minutus	LC	non-breeding (1988–2006)	12,000 birds	A4i
Oriental Pratincole Glareola maldivarum	LC	non-breeding (1998–2006)	20,000–2,880,000 birds	A4i
Whiskered Tern Chlidonias hybrida	LC	breeding (1999–2000)	4,920–27,360 birds	A4i
Common Gull-billed Tern Gelochelidon nilotica	LC	breeding (1999–2000)	70–6,590 birds	A4i
Dusky Gerygone Gerygone tenebrosa	LC	resident (1998–2008)	common	A2

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
Agricultural expansion and intensification	happe­ning now	most of popul­ation/area (50–90%)	no or slight decline (<1% over 3 gener­ations)	low
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
2015	Nyangumarta Warrarn	Indigenous Protected Area (VI)	33

Habitat	% of IBA	Habitat detail
Grassland	major (>10)	Tussock grasslands
Marine Coastal/Supratidal	major (>10)
Marine Intertidal	major (>10)

Land use	% of IBA
rangeland/pastureland	major (>10)
energy production and mining	minor (<10)

Crown Land including Mandora, Anna Plains and Wallal pastoral leases.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Mandora Marsh and Anna Plains (Australia). Downloaded from https://datazone.birdlife.org/site/factsheet/mandora-marsh-and-anna-plains-iba-australia on 23/12/2024.