Map_thumbnail_large_font

Pedionomus torquatus 

Scope: Global
Language: English
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_offStatus_cr_onStatus_ew_offStatus_ex_off

Translate page into:

Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Charadriiformes Pedionomidae

Scientific Name: Pedionomus torquatus Gould, 1841
Common Name(s):
English Plains-wanderer
Taxonomic Source(s): Christidis, L. and Boles, W.E. 2008. Systematics and Taxonomy of Australian Birds. CSIRO Publishing, Collingwood, Australia.
Identification information: 15-19 cm. Distinctive, quail-like ground bird. Adult male light brown above with brown rosette and white streak patterning. Fawn-white underparts with black crescents. Adult female has distinctive, white-spotted black collar and broad rufous gorget on upper breast. Juvenile similar to adult male. Similar spp. Similar to buttonquails Turnix spp. but with longer legs. Distinguished in flight from quails and buttonquails by upperwing pattern of white primary patch and broad pale trailing edge, and on ground, by diagnostic female plumage, characteristic upright posture and longer legs. Voice Repeated, low-pitched resonant oo by day and night, in spring. Hints Usually detected at night by spotlighting lightly-grazed grasslands.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered A2ac ver 3.1
Year Published: 2017
Date Assessed: 2017-10-01
Assessor(s): BirdLife International
Reviewer(s): Symes, A.
Contributor(s): Antos, M., Baker-Gabb, D., Dutson, G., Garnett, S. & Gregory, P.
Facilitator/Compiler(s): Garnett, S., McClellan, R., Pilgrim, J., Shutes, S., Stattersfield, A., Taylor, J., Allinson, T, Symes, A., Wheatley, H., Dutson, G., Westrip, J.
Justification:

The species is listed as Critically Endangered because it has a very small population which, in the past decade, has experienced a decline of >90% in both of its strongholds, the Riverina of New South Wales and north-central Victoria, due to cultivation, and inappropriate grazing of natural grassland and climatic events.  

Previously published Red List assessments:

Geographic Range [top]

Range Description:Pedionomus torquatus is endemic to Australia.  It is recorded from north-central Victoria, north-eastern South Australia, southern New South Wales (NSW) around the Riverina and west-central Queensland (Barrett et al. 2003; Commonwealth of Australia 2016). Garnett et al. (2011) estimated the total number of mature individuals to be c.2000 and decreasing. Since that time, significant declines in Plains-wanderer numbers have been reported in the species’s two strongholds in Victoria and NSW. Monitoring and annual surveys conducted across the Northern Plains of Victoria between 2010 and 2015 indicated a decline in numbers of > 90% during this period (Baker-Gabb et al. 2016). Monitoring across the NSW Riverina detected a decline in numbers of 93% across the region over the period from 2001 to 2014 (Wilson et al. 2014). Whether the smaller populations in west-central Queensland and north-east South Australia have experienced similar declines is not known. The status of the species in native grasslands of the basalt plains of south western Victoria is unknown. There is no regular survey effort in this region and recent records are sparse and sporadic. 

Countries occurrence:
Native:
Australia
Additional data:
Continuing decline in area of occupancy (AOO):Yes
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:526000
Continuing decline in extent of occurrence (EOO):YesExtreme fluctuations in extent of occurrence (EOO):No
Number of Locations:11-100Continuing decline in number of locations:Yes
Extreme fluctuations in the number of locations:No
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The population is estimated to vary from between 5,500–7,000 in good years to around 2,000 birds during periods of widespread drought (Baker-Gabb 2002, Garnett et al. 2011). Regular monitoring has recorded a >90% decline in the species’s Victorian stronghold between 2010 and 2015 (Baker-Gabb et al. 2016), and a 93% decline between 2001 and 2014 in its other stronghold in NSW (Wilson et al. 2014).  The TSSC (2015) estimated the total number of mature individuals of Plains-wanderers to be < 1,000 birds in 2015, and so the population size is placed here in the range 250-999 mature individuals.

Trend Justification:  

A decline of >90% has been detected in the past decade in both of its strongholds, the Riverina of New South Wales and north-central Victoria, due to cultivation, and inappropriate grazing of natural grassland and climatic events (TSSC 2015). The total decline over the past 3 generations (c.22 years) is not known, and as the species will move away from unsuitable areas, part of these reported declines could represent the species moving to new, as yet unfound, sites. However, in the absence of any evidence for this species moving to new areas, the rate of decline in this species may be conservatively suspected to be >80% over the past 3 generations and so is placed here in the range 80-99%.

Current Population Trend:Decreasing
Additional data:
Number of mature individuals:250-999Continuing decline of mature individuals:Yes
Extreme fluctuations:NoPopulation severely fragmented:No
No. of subpopulations:1Continuing decline in subpopulations:Yes
Extreme fluctuations in subpopulations:NoAll individuals in one subpopulation:Yes
No. of individuals in largest subpopulation:100

Habitat and Ecology [top]

Habitat and Ecology:

Plains-wanderers inhabit sparse grasslands with c.50% bare ground, with most vegetation 5-15cm in height and some widely spaced plants up to 30 cm high (Baker-Gabb et al. 1990, Baker-Gabb et al. 2016). The species may occasionally use lower-quality habitat including cereal stubble, but cannot persist in a cropped landscape (Garnett et al. 2011). Plains-wanderers are sedentary for as long as the habitat remains suitable (Garnett et al. 2011). Plains-wanderers are capable of breeding in their first year and they breed in solitary pairs (Baker-Gabb et al. 1990). Evidence suggests that the species may have a polyandrous mating system in which individual females may mate with more than one male (Baker-Gabb et al. 1990). The nest is a hollow or 'scrape' that is scratched into the ground and lined with grass (Harrington et al. 1988). The nests are usually placed in native grasses and herbs and in some instances nearby grasses may be pulled over the nest to form a concealing cone or tent (Harrington et al. 1988; Marchant and Higgins 1993). Clutch-size is usually four eggs, but can range from two to five (Bennett, 1983). The male does most of the incubation during the 23 day incubation period (Baker-Gabb et al. 1990; Bennett 1983). The young are primarily attended by the male, and become independent at about two months of age (Baker-Gabb 1990). 

Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes
Generation Length (years):7.3
Movement patterns:Not a Migrant

Threats [top]

Major Threat(s): The cultivation of native grassland has virtually extinguished the species from southern South Australia and Victoria and is increasing across Northern Victoria and the Riverina (Garnett et al. 2011). Even if left to recover, habitat remains unsuitable for decades; however, with appropriate management Plains-wanderers can sometimes return within 20 years of cropping (Antos 2014). Where patches survive, they are often too few and dispersed to be suitable. High levels of grazing cause the desertion of an area, possibly because birds become too vulnerable to predators (Baker-Gabb et al. 1990). Insufficient grazing following widespread rainfall and prolific grass growth will also cause the abandonment of grasslands that become too dense for Plains-wanderers (Baker-Gabb et al. 2016). Pesticides for locust control may kill birds, directly or indirectly through the food chain (Commonwealth of Australia 2016). Plains-wanderers may be exposed to increased extinction risk due to their historically low population size. Other potential threats to Plains-wanderers include: depredation by foxes and native species, lack of appropriate burning regimes, planting of trees in or near grasslands, wildfires, quail hunters, and climate change, including extreme climatic events such as drought (which appear to have impacted the species heavily [P. Gregory in litt. 2017]) and floods which make habitat management difficult and can hamper population recovery (TSSC 2015). 

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
Management actions completed or underway include extensive surveys in New South Wales, Victoria and south-east South Australia, detailed research on habitat requirements, recovery planning in New South Wales and Victoria, and incorporation of habitat in the protected-areas estate in New South Wales, Queensland and Victoria. Locust control spraying is now regulated in the species's habitat. Habitat is being managed for conservation outcomes within protected areas in NSW and Victoria primarily through grazing and, to a lesser extent, ecological burning. Ongoing localised community education and engagement programs have resulted in a significant portion of local communities in north central Victoria being aware of and valuing plains-wanderers (Johnstone et al. 2015). A small captive colony has now been established (S. Garnett in litt. 2017).

Conservation Actions Proposed
Develop and implement a captive breeding strategy. Facilitate grazing management to soil type and enable landholders to maintain suitable grassland biomass for Plains-wanderers on red soils. Reduce, and where possible prevent, the cultivation and loss of important areas of plains-wanderer habitat. Design and implement a habitat protection and management strategy for all lands in which Plains-wanderers are a management target. Remove introduced trees and large boxthorns on, or within 300 m of, red soils where suitable Plains-wanderer habitat exists. Where identified as necessary, develop and implement feral species control programs. Where identified as necessary mitigate the impacts of wildfires, quail hunting and pesticide use on Plains-wanderers. Develop and implement a broad strategy to raise awareness and educate the general public about Plains-wanderer conservation. Continue to inform, support and encourage landholders and other community members, including indigenous groups, to be involved in the conservation of plains-wanderers. Develop a targeted information pack to assist landholders, outdoor enthusiasts and professionals in the identification and reporting of sightings of Plains-wanderers.

Maintain long term Plains-wanderer monitoring programs in the species’ strongholds in the Riverina region of NSW and the Northern Plains of Victoria. Undertake regular monitoring at other known Plains-wanderer sites. Closely monitor grazing impacts on public and private reserves where grazing regimes are being managed for Plains-wanderers, to ensure grassland structure remains within acceptable limits for the species. Increase understanding of population dynamics of Plains-wanderers (e.g. population size, age/size class structure, dispersal rates). Study the effects of season, grazing and burning on the type and availability of food in Plains-wanderer habitat. Measure the impacts of feral species on Plains-wanderers. Study the roles of burning and slashing in maintaining and improving habitat conditions in National Parks, Reserves and other lands managed for Plains-wanderer conservation. Measure the impacts of wildfires, quail hunting and pesticide use on Plains-wanderers. Develop a Population Response Model for Plains-wanderers.


Citation: BirdLife International. 2017. Pedionomus torquatus. The IUCN Red List of Threatened Species 2017: e.T22693049A118253698. . Downloaded on 15 December 2017.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided