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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
White-quilled Rock-pigeon Petrophassa albipennis	LC	resident (1998–2008)	frequent	A2, A3
Partridge Pigeon Geophaps smithii	LC	resident (2008)	uncommon	A1, A2, A3
Bush Thick-knee Burhinus grallarius	LC	resident (1998–2008)	uncommon	A1
Chestnut-backed Buttonquail Turnix castanotus	LC	resident (2008)	uncommon	A1, A2, A3
Northern Rosella Platycercus venustus	LC	resident (1998–2008)	uncommon	A3
Varied Lorikeet Psitteuteles versicolor	LC	resident (1998–2008)	uncommon	A3
Purple-crowned Fairywren Malurus coronatus	LC	resident (1998–2008)	uncommon	A3
Banded Honeyeater Cissomela pectoralis	LC	resident (1998–2008)	uncommon	A3
Silver-crowned Friarbird Philemon argenticeps	LC	resident (1998–2008)	common	A3
Bar-breasted Honeyeater Ramsayornis fasciatus	LC	resident (1998–2008)	uncommon	A3
White-gaped Honeyeater Stomiopera unicolor	LC	resident (1998–2008)	common	A3
Yellow-tinted Honeyeater Ptilotula flavescens	LC	resident (1998–2008)	common	A3
Sandstone Shrike-thrush Colluricincla woodwardi	LC	resident (1998–2008)	uncommon	A3
Buff-sided Robin Poecilodryas cerviniventris	LC	resident (1998–2008)	uncommon	A3
Yellow-rumped Mannikin Lonchura flaviprymna	LC	resident (1998–2008)	uncommon	A2, A3
Star Finch Neochmia ruficauda	LC	resident (1998–2008)	uncommon	A1
Masked Finch Poephila personata	LC	resident (1998–2008)	frequent	A3
Long-tailed Finch Poephila acuticauda	LC	resident (1998–2008)	frequent	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 (2019) 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	some of popul­ation/area (10–49%)	slow decline (1–10% over 3 gener­ations)	medium

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
2009	Gregory's Tree	Historical Reserve (III)	<1

Habitat	% of IBA	Habitat detail
Savanna	major (>10)	Eucalypt open woodlands
Forest	minor (<10)	Eucalypt woodlands

Land use	% of IBA
nature conservation and research	100

Northern Territory Government with park administered by Parks NT.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Gregory National Park (Australia). Downloaded from https://datazone.birdlife.org/site/factsheet/gregory-national-park-iba-australia on 23/12/2024.