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Location Australia, New South Wales (and ACT)
Central coordinates 149o 54.74' East  32o 21.27' South
IBA criteria A1, A2, A3
Area 162,656 ha
Altitude 580 - 745m
Year of IBA assessment 2009

BirdLife Australia

Summary The IBA regularly supports the endangered Regent Honeyeater. It also supports small numbers of the near threatened Diamond Firetail, and the restricted-range Rockwarbler at the far north-west of its range.

Site description This IBA consists of land around Goulburn River National Park, north of Wollemi National Park, inland from Newcastle. The IBA includes Goulburn River National Park, Munghorn Gap Nature Reserve and private land west to Gulgong and Mudgee, being defined by a number of woodland remnants used by Regent Honeyeaters around Mudgee, Buckeroo, Home Rule, Meroo, Ulan, Wollar, Windemere Dam and Murrumbo. The Goulburn River NP extends along 80km of the Goulburn River. The average daily temperature varies from 15-30 Celsius in summer to 2-13 Celsius in winter and the average annual rainfall is 620 mm.

Key Biodiversity The vulnerable Painted Honeyeater is probably a regular breeding visitor but is under-recorded (Atlas of Australian Birds database); confirmed sites recorded in New South Wales Annual Bird Reports include Munghorn Gap (three in October 1998 and January 1997 plus eight records in the Atlas of New South Wales Wildlife from 1980 to June 2008), Wollar (one in 2000) and Goulburn River National Park (one in 2001). There have been occasional records of the endangered Swift Parrot (New South Wales Annual Bird Reports; NSW NPWS 2008) and the near threatened Flame Robin (Atlas of Australian Birds database). One hundred and sixty-four species of bird, including at least 14 species listed as threatened at state level or above, have been recorded in Munghorn Gap Nature Reserve (NSW NPWS 2007, 2008).

Non-bird biodiversity: The IBA supports a range of non-avian wildlife. For example, two species of amphibian, 22 species of reptile and at least 26 species of mammal have been recorded in Munghorn Gap Nature Reserve (Atlas of New South Wales Wildlife 2007).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Regent Honeyeater Xanthomyza phrygia resident  1996-2006  50 individuals  medium  A1  Critically Endangered 
Rockwarbler Origma solitaria resident  1980-2008  common  A2, A3  Least Concern 
Diamond Firetail Stagonopleura guttata resident  1980-2008  uncommon  A1  Least Concern 

IBA Monitoring

2008 medium not assessed not assessed
Medium - based upon reliable but incomplete / partially representative data

Agriculture and aquaculture livestock farming and ranching (includes forest grazing) - agro-industry grazing, ranching or farmin happening now some of area/population (10-49%) slow but significant deterioration medium

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Goulburn River National Park 72,730 protected area contained by site 70,323  
Greater Blue Mountains Area World Heritage Site 1,030,000 protected area is adjacent to site 0  
Munghorn Gap Nature Reserve 6,167 protected area contained by site 5,934  


IUCN habitat Habitat detail Extent (% of site)
Artificial - terrestrial Improved grassland & pasture  major
Forest Eucalypt woodlands  major

Land ownership Largely private land; also protected areas managed by state government (Department of Environment and Climate Change).

Land use

Land-use Extent (% of site)
nature conservation and research major
rangeland/pastureland major

Protection status The IBA contains the Goulburn River National Park and all of the Munghorn Gap Nature Reserve.

Acknowledgements Thanks to Alan Morris as compiler and David Geering for his assistance.

References NSW NPWS (2007). Munghorn Gap Nature Reserve.

NSW NPWS (2008) Atlas of NSW Wildlife. Accessed 2008.

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Mudgee-Wollar. Downloaded from on 23/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife