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Painted Buttonquail (Turnix varius)

The Painted Buttonquail is a small, ground-dwelling Australian bird of dry scrub, woodland, forest, heathland and open grassland. It feeds and nests on the ground, so clearing, vehicle access, fire, weed spread and loss of dense ground cover can affect individuals and breeding sites on development projects. The Houtman Abrolhos subspecies is restricted to a small group of Western Australian islands and is particularly sensitive to introduced predators, habitat degradation and disturbance.

Conservation status

Commonwealth, EPBC Act 1999: Endangered.

Western Australia, Biodiversity Conservation Act 2016: Endangered.

Breeding season

Timing differs between mainland, Tasmanian and Abrolhos birds. Ground nesting means disturbance risk extends beyond egg laying because chicks are precocial, mobile and dependent on the male after hatching.

Months are January to December. The risk row represents the combined breeding periods reported for the main Australian regions, not a single breeding season applying everywhere.

  • Breeding, mainland: Mainland breeding is generally September to March, with breeding possible at other times under local conditions.
  • Breeding, Abrolhos: The Abrolhos subspecies lays from April to October. The breeding period includes ground nests and male incubation.
  • Young and dependent birds: Chicks are precocial, hatch after about 13 to 15 days in mainland birds, quickly follow the male and are initially fed by him. The exact fledging period for the Abrolhos subspecies is unknown.
  • Movement and dispersal: The species is not described as migratory. Birds usually occur in pairs, and flushed birds can fly low for considerable distances. Movement between Abrolhos islands is poorly known, although a sand bridge can connect East and West Wallabi at low tide.
  • Highest clearing risk: Ground nests, incubating males and dependent young make clearing and intensive disturbance most harmful during the local breeding periods: September to March on the mainland, October to December in Tasmania and April to October in the Abrolhos. Check local records because breeding can occur outside the usual season.

Identification

Painted Buttonquail is a small, cryptic bird that is more often detected from its behaviour and ground-feeding signs than from a clear view. It usually runs in short bursts and flies low when flushed.

Adults are mainly grey or brownish-grey above, with white, reddish-brown and black spots, blotches, bars and streaks. A large reddish-brown shoulder patch is distinctive. The chin and throat are white, the breast is grey with buff spotting, the belly is white to cream, and the undertail is buff to reddish-buff.

The species lacks a hind toe, as do other buttonquails. Females are substantially brighter and somewhat larger than males. Females have more strongly marked plumage, while males tend to show more whitish spotting on the grey chest.

Length: 14 to 17 cm

General weight: 60 to 130 g

Mainland weight: 85 to 112 g

Abrolhos weight: 52 to 82 g

Identification: Behaviour and calls

The bird is usually seen singly or in pairs. Mainland birds are nocturnal and crepuscular, and the female gives a low booming advertising call, often at night. A disturbed bird may freeze, run quickly with its head held high, or flush in a low flight one to two metres above the ground before landing and running.

During courtship, the female gives deep booming notes, scratches and stamps the ground, and may present food to the male. The male responds with faint clucking sounds. Females defend breeding territories.

  • Listen for a low booming call at night or around dusk, followed by rapid drumming when a bird is disturbed or challenged.
  • Treat a bird that runs rather than immediately flying as a possible buttonquail, and inspect nearby ground for platelets before continuing work.

Identification: Ground signs and nest

The most useful field sign is a platelet, a small circular depression made when the bird scratches through soil or leaf litter for food. The bird scratches two or three times with one foot, half-rotates its body, then scratches with the other foot.

The nest is a shallow scrape in loose soil, about 10 cm across and 2 cm deep. It is lined with fine twigs or dead grass and concealed from above by an overhanging bush, grass tuft, small shrub or fallen sapling. Eggs are white or pale brown to buff, with brown or dark spotting.

Nest scrape: About 10 cm diameter and 2 cm deep

Eggs: Three to five generally; three recorded for the Abrolhos subspecies

Incubation: About 13 to 15 days in mainland birds

  • Search leaf litter, loose soil and sandy ground for repeated circular feeding depressions.
  • If a scrape nest or fresh platelets are found, stop disturbance in the immediate area and refer the location to the project ecologist or fauna spotter catcher.

Distribution: National range

Turnix varius occurs across much of eastern, southern and south-western Australia, with additional populations in Tasmania, South Australia, Kangaroo Island and the Houtman Abrolhos. The supplied sources do not provide a single national population estimate for the species as a whole.

The mainland form occurs in eastern Australia, southern Australia and south-western Western Australia, including areas near the Abrolhos Islands. The species also occurs in Tasmania, Kangaroo Island and the Houtman Abrolhos archipelago.

Reported mainland environments extend across temperate and warmer parts of Australia, including dry scrub, heathland, forest, woodland and timbered ridges. The supplied sources do not give a complete state by state boundary or a definitive list of IBRA bioregions for the mainland form.

States and territories indicated by the sources: Western Australia, South Australia, Victoria, New South Wales, Queensland and Tasmania

Other Australian locations: Kangaroo Island and the Houtman Abrolhos archipelago

Abrolhos location: About 60 to 80 km off the western coast of Western Australia

Abrolhos IBRA region: Geraldton Sandplain

Distribution: Strongholds and subpopulations

The Houtman Abrolhos subspecies is endemic to seven recorded islands. Resident populations have been reported from East Wallabi Island, West Wallabi Island and North Island, with records from Oystercatcher, Turnstone, Seagull and Pigeon islands. The smaller islands are not thought to support resident populations.

North Island has experienced repeated declines. Birds were not found there during searches in 2013 and 2017, suggesting local extirpation, while East and West Wallabi remain the principal resident locations. Camera trapping has detected birds more frequently on West Wallabi than East Wallabi.

Resident Abrolhos islands: East Wallabi, 321 ha; West Wallabi, 587 ha; North Island, 181 ha

Other recorded Abrolhos islands: Oystercatcher, 4.6 ha; Turnstone, 1.4 ha; Seagull, 7.7 ha; Pigeon, 4.3 ha

Estimated mature Abrolhos population: About 250 for assessment purposes, with an earlier estimate of 500 and a range of 100 to 1,000

Abrolhos distribution: Extent of occurrence and area of occupancy were each assessed at about 48 km² for the conservation assessment

Distribution: Status and trend

The project information identifies the species as Endangered under the EPBC Act and in Western Australia. The supplied documents distinguish the mainland form, which is described as uncommon and potentially declining in some regions, from the highly restricted Abrolhos subspecies.

Population size for mainland Painted Buttonquail is not provided. The Abrolhos population fluctuates with rainfall and has undergone range contraction through the apparent loss of North Island birds.

Project listing information: EPBC Act Endangered; Western Australia Endangered

Mainland population estimate: Not provided in the supplied documents

Abrolhos trend: Rainfall-related fluctuations, with apparent extirpation from North Island since 2006 despite later searches

Habitat: Habitat types

Painted Buttonquail uses dry terrestrial habitats with scrub or woodland shelter and suitable ground litter or loose soil. Habitat quality depends on both the vegetation structure above the ground and an intact, relatively open feeding surface below it.

The mainland form occurs in heathland, forest, scrub, timbered ridges, thickets, scrubs, forests and woodlands. It prefers dry sites with scrub or other shelter, and woodland with a relatively closed canopy, understorey and leaf litter on the ground.

In the Buloke Woodlands ecological community, Painted Buttonquail is one of the associated bird species. These woodlands occur on loams or sands in the Riverina and Murray-Darling Depression bioregions.

Main habitat types: Heathland, scrub, forest, woodland, timbered ridges and dry thickets

Buloke Woodland bioregions: Riverina and Murray-Darling Depression

Habitat: Abrolhos habitat

The Abrolhos subspecies can occur in all island environments except bare limestone pavements. It is most often observed in open Spinifex longifolius grassland on low sand dunes and open Atriplex cinerea and Halosarcia halocnemoides shrubland on flats.

It also uses Frankenia pauciflora shrubland, dense Nitraria thickets, and occasionally the sub-littoral zone and areas around fishing camps.

Known Abrolhos vegetation: Spinifex longifolius grassland, Atriplex cinerea shrubland, Halosarcia halocnemoides shrubland, Frankenia pauciflora shrubland and Nitraria thickets

Elevation information: No general elevation limit is provided; most Wallabi Group islands are low, and many areas are below 2 m elevation

  • Retain low sand dunes, open grassland, shrubland flats, dense native thickets and intact ground cover during site planning.
  • Do not assume that sparse or floristically poor vegetation has no value, because birds may use open or degraded areas where suitable ground cover remains.

Foraging habitat: Diet and feeding method

Painted Buttonquail feeds on the ground by scratching through loose soil, sand and leaf litter. Platelets are a useful sign that suitable foraging habitat is present even when birds are not seen.

The diet includes seeds and insects. Birds scratch and glean food from the ground and may take scraps around fishing camps in the Abrolhos.

Feeding creates distinctive circular depressions, or platelets, in soil or leaf litter. Repeated platelets indicate active or recently used foraging habitat and should be recorded before clearing or ground disturbance.

Plant food: Seeds, grains and nuts

Animal food: Insects and other invertebrate food described generally as insects

Foraging sign: Small circular depressions in soil or leaf litter

  • Inspect dry leaf litter, loose soil, sandy patches and the base of shrubs for platelets during pre-clearance surveys.
  • Keep vehicles, stockpiles and machinery out of active platelet areas until their use has been assessed.

Foraging habitat: Foraging settings

Mainland birds forage where ground litter is present beneath thickets, scrub, forest or woodland. Abrolhos birds forage in loose soil and sand beneath open Spinifex grassland and shrubland, and may also use the sub-littoral zone and areas around fishing camps.

No measured home range or foraging distance is provided in the supplied documents. Birds can fly considerable distances when flushed, but their routine foraging range is not known.

Breeding habitat: Breeding biology

The species nests on the ground in a concealed scrape. Breeding habitat therefore requires loose soil or litter for the scrape, overhead concealment and enough surrounding cover for the male and precocial young to move and feed.

Painted Buttonquail is polyandrous. The female may breed with several males, and the male incubates the eggs and attends the chicks. The young are precocial and quickly follow the male after hatching.

Breeding timing varies geographically and can also respond to local conditions. The Abrolhos subspecies lays from April to October, while mainland birds generally breed from September to March and Tasmanian birds from October to December.

Breeding season, mainland: September to March

Breeding season, Tasmania: October to December

Breeding season, Abrolhos subspecies: April to October

Clutch size: Three to five eggs generally; three eggs for the Abrolhos subspecies

Incubation: About 13 to 15 days in mainland birds; about 13 to 14 days is suggested for the Abrolhos subspecies

Age at maturity: About one year, based on the estimate used for the Abrolhos subspecies

Lifespan: Maximum longevity of about nine years was used to estimate Abrolhos generation length; species longevity is otherwise poorly known

Breeding habitat: Breeding-site features

The nest is a scrape in loose soil, usually concealed beneath an overhanging bush, grass tuft, small shrub or fallen sapling. Ground nests may occur within open grassland, shrubland, scrub, woodland or forest where cover is available.

Because chicks leave the nest quickly and follow the male, breeding habitat includes the surrounding ground layer, not only the nest scrape. Clearing, grading, slashing, vehicle movement and removal of leaf litter can therefore affect eggs, incubating males and dependent chicks.

  • Treat any scrape nest, incubating bird, booming female or male with dependent chicks as a breeding record requiring immediate advice from the project ecologist.
  • Retain overhead cover and connected ground vegetation around known nests and active platelet areas until breeding activity has finished and the area has been checked again.

Sheltering habitat: Cover and refuges

The species shelters and escapes danger in low vegetation and ground cover rather than in tree hollows or elevated roosts. The supplied documents give limited information on routine sheltering sites.

Mainland birds use scrub, thickets, understorey, leaf litter and fallen vegetation for concealment. When disturbed they may freeze or run quickly through cover before making a low flight.

Abrolhos birds may use shearwater burrows as refuges on West Wallabi Island, and possibly as breeding sites. Nests are concealed beneath overhanging vegetation rather than placed in hollows.

Known nest cover: Overhanging bush, grass tuft, small shrub or fallen sapling

Abrolhos refuge: Shearwater burrows are likely to be used on West Wallabi Island

Tree hollows: No use of tree hollows is reported in the supplied documents

  • Inspect dense grass clumps, low shrubs, fallen saplings, leaf litter and accessible burrows before clearing.
  • Avoid blocking or filling shearwater burrows or other potential refuges on Abrolhos islands without site-specific ecological advice.

Sheltering habitat: Response to disturbance

A flushed bird usually flies low, about one to two metres above the ground, then drops and runs. It may fly up to about 6 m above the ground and travel considerable distances.

A bird that disappears into ground cover may not have left the work area. Spotters should pause and check the surrounding cover, litter and nearby scrapes before allowing machinery to proceed.

  • Use a slow, staged pre-clearance search and maintain visual observation after a bird is flushed.
  • Record the direction of flight and inspect the landing area for platelets, nests and dependent young.

Threats: Clearing and development

The main project risks are removal of ground habitat, disturbance or destruction of nests, fire, introduced predators and weeds. Risks are especially concentrated where small populations occupy isolated habitat, including the Houtman Abrolhos islands.

Clearing, grading, road construction, infrastructure, increased access and recreation can remove feeding and breeding habitat or disturb birds directly. Land use and development can also introduce non-endemic fauna and flora, particularly on islands.

Fragmentation and loss of ground cover are relevant because birds feed and nest on the ground and use connected cover for escape and chick movement. The supplied documents do not quantify a minimum patch size, road buffer or crossing mortality rate.

  • Map native scrub, woodland, open grassland, shrubland, leaf litter, loose soil, platelets and potential nest cover before finalising the clearing footprint.
  • Keep access tracks, laydown areas and stockpiles outside retained ground-cover habitat where practicable.
  • Use a fauna spotter catcher during clearing where suitable habitat, platelets, nests or recent records are present.

Threats: Fire and vegetation change

Major fire can remove habitat until vegetation recovers. If most of an island burns, the local population may decline substantially or become locally extinct. Fire may also expose nests, reduce litter and remove the low cover used for feeding and shelter.

Invasive golden crownbeard and Paterson's curse can form dense stands and displace native ground vegetation. Tammar wallaby grazing on North Island caused reduced cover, reduced plant recruitment, trampling, ringbarking and sand drift, and was associated with the apparent loss of the button-quail there.

  • Prevent ignition during works and maintain the project fire plan, especially in dry grassland, heathland and dune vegetation.
  • Clean machinery and control soil movement to reduce weed introduction and spread.
  • Do not remove native ground cover solely because a site appears open or degraded; inspect for platelets and suitable feeding substrate first.

Threats: Predators, disease and hydrology

Introduced cats, black rats and foxes are a major potential threat to the Abrolhos subspecies because they can prey on adults, eggs and chicks or compete for food. House mice may compete for seeds and invertebrates and may eat eggs or young birds. Carpet pythons prey on buttonquail and King's skinks are likely to eat eggs, but these are native predators in the Abrolhos context.

No disease threat or disease-specific management action is identified in the supplied documents. No direct hydrology-change threat is described for the mainland form. For the Abrolhos subspecies, rainfall affects recruitment, while drought, storms and sea level rise may reduce habitat recovery or inundate low islands.

Abrolhos rainfall response: Rainfall is likely to precede pulses of recruitment

Sea level projection cited: About 24 cm rise in Western Australia by 2050

Disease evidence: No disease threat is identified in the supplied documents

  • Apply strict site hygiene and biosecurity controls when moving machinery, freight, soil, food or waste to offshore islands.
  • Prevent access by cats, rats, foxes and other introduced fauna, and report incursions immediately under the relevant island biosecurity plan.
  • Avoid unnecessary alteration of drainage, soil moisture or flood paths in woodland and shrubland habitat, and refer any proposed hydrology change for site-specific assessment.

Survey methodology: 1. Habitat assessment and daytime searches

Painted buttonquail are small, ground-dwelling birds that can be difficult to detect. Survey should focus on ground searches, camera traps, call and visual observations, and the distinctive circular feeding depressions known as platelets. The mainland subspecies occurs in dry scrub, heath, woodland and forest with ground cover and leaf litter, while the Houtman Abrolhos subspecies uses open Spinifex grassland, low dunes and open shrubland.

Map all suitable ground habitat before clearing, including dense grass or heath, shrub cover, leaf litter, loose soil, low dunes, woodland understorey and connected patches of cover.

Search systematically for platelets, tracks, feathers, nests, droppings and birds sheltering under vegetation or fallen material.

Record the location, number, condition and age of platelets, and photograph representative signs with a scale. Platelets are small circular depressions made when birds scratch for seeds and insects.

  • Walk parallel transects through each habitat patch and space transects closely enough to inspect all ground cover and likely feeding areas.
  • Inspect retained vegetation, project edges, access tracks, stockpiles and other disturbed ground that may contain feeding or sheltering habitat.
  • Do not rely on absence of platelets or birds during one daytime visit, because detectability varies with rainfall, season and recent disturbance.

Survey methodology: 2. Dawn, dusk and night searches

Survey during the species' active periods, particularly around dawn, dusk and at night. The mainland subspecies is described as nocturnal and crepuscular.

Use quiet walking transects and listening stops to detect movement, calls and flushing birds. Females can give low booming advertising calls, often at night, and birds may freeze or run in short spurts when disturbed.

  • Conduct repeated visits that cover each suitable habitat patch in differing weather and ground conditions, with the number of visits justified in the fauna survey plan.
  • Avoid strong wind, heavy rain and other conditions that reduce audibility or make safe ground searching impractical.
  • Use a low-intensity light and avoid chasing or repeatedly flushing birds, particularly during breeding activity.

Survey methodology: 3. Motion cameras and targeted monitoring

Deploy motion-sensitive cameras at representative feeding areas, dense cover, likely movement routes and locations with fresh platelets. Camera trapping detected the Houtman Abrolhos subspecies more frequently on West Wallabi than East Wallabi.

Use cameras as a supplementary method, not as proof that habitat is unoccupied. Detection can vary with rainfall, season, vegetation and camera placement.

  • Keep a deployment register showing camera location, habitat type, operating dates, settings, bait or lure use if any, servicing dates and results.
  • Do not use food scraps or other attractants on construction sites unless authorised under the project fauna management plan.
  • For the Houtman Abrolhos subspecies, treat current and recent records on East Wallabi, West Wallabi and North Island, and suitable refuge islands, as high-priority records.

Survey methodology: Minimum effort and reporting

  • Use a qualified ecologist to set the survey design, justify the number and timing of visits, and confirm whether additional survey is needed before clearing.
  • Survey all areas proposed for clearing, temporary access, laydown, spoil placement and vegetation trimming, including adjoining retained habitat that may be used for refuge or relocation.
  • Record survey dates, start and finish times, observers, weather, visibility, wind, rainfall history, transect length, area searched, camera locations and effort, and all detection and non-detection results.
  • Submit confirmed records and suitable evidence to the relevant state wildlife database and to the Atlas of Living Australia where appropriate, in accordance with project and state requirements.
  • Report the taxon to subspecies level where identification is reliable, particularly for records from the Houtman Abrolhos, and retain photographs, audio, camera files and specimen or tissue information under the applicable approvals.

Before habitat disturbance: Avoid and minimise habitat loss

Treat occupied or recently occupied ground habitat as a constraint before design and clearing decisions are made. The species nests and feeds on the ground, so retaining cover, leaf litter, loose soil and connected refuge habitat is more important than retaining tree hollows alone.

  • Redesign the footprint to retain known records, fresh platelet concentrations, nesting habitat, dense ground cover, heath, shrubland, woodland understorey, leaf litter and connected vegetation.
  • Retain the largest practical continuous patches of suitable ground habitat and avoid isolating small patches between roads, compounds, fencing and cleared areas.
  • For the Houtman Abrolhos subspecies, protect occupied and recently occupied habitat on East and West Wallabi and any future refuge or reintroduction islands identified in the conservation advice.
  • Keep machinery, vehicle parking, spoil, washdown areas and lighting out of retained habitat and likely feeding areas.

Before habitat disturbance: Approvals and project planning

  • Check whether the proposed action may significantly impact the nationally listed taxon and seek an EPBC Act referral or other Commonwealth approval where required.
  • Check state and territory threatened fauna legislation, wildlife handling licences, clearing approvals, permit conditions and database requirements before work starts.
  • Prepare a fauna management plan that identifies survey results, no-go areas, clearing limits, fauna spotter catcher responsibilities, stop-work triggers, relocation sites, incident contacts and reporting requirements.
  • Schedule clearing outside periods of likely breeding activity where practicable, noting that mainland breeding is generally September to March, with breeding in Tasmania generally October to December, while the Houtman Abrolhos subspecies lays from April to October.
  • Stage clearing so that animals can move into retained habitat and so that the spotter catcher can inspect each work area safely before machinery enters.

Before habitat disturbance: Pre-clearance controls

  • Complete a pre-clearance inspection close to the start of works, including a targeted search for platelets, nests, birds, dense ground cover and other signs.
  • Mark no-go habitat, retained vegetation, nest locations, platelet concentrations and relocation areas with fencing, bunting or other controls that machinery operators can see.
  • Install exclusion fencing where it will prevent entry into retained habitat, but do not create barriers that trap birds or sever their access to nearby cover.
  • Brief all workers on the species' appearance, ground-dwelling behaviour, platelets, reporting process, speed limits and stop-work requirements.
  • Confirm that the fauna spotter catcher has authority to direct machinery and that the work crew understands that fauna instructions take precedence over production schedules.

During habitat disturbance: Daily controls and machinery coordination

Clearing must proceed slowly and under the direct control of the fauna spotter catcher. The main risk is injury or nest loss when machinery removes ground cover, shrubs, leaf litter and loose soil.

  • Inspect the work area each day before machinery starts, and repeat the inspection after overnight rain, high winds, fire, unexpected disturbance or a change in the clearing footprint.
  • Set a clearly defined inspection zone and move machinery only after the fauna spotter catcher has released that zone.
  • Use staged clearing from the least disturbed edge towards retained habitat, at a speed that allows birds to move away and allows the spotter catcher to stop machinery safely.
  • Keep machinery, vehicles, workers and materials outside marked retained habitat, nest areas, platelet concentrations and relocation sites.
  • Maintain low vehicle speeds on unsealed tracks and avoid night works in suitable habitat unless specifically assessed and controlled.

During habitat disturbance: Ground habitat and fauna handling

  • Before removing shrubs, grass tussocks, leaf litter, logs, rocks or loose soil, inspect beneath and around the material for birds, nests and dependent young.
  • Do not disturb an active nest unless the approval, fauna management plan and authorised fauna specialist provide a lawful and documented procedure.
  • If a bird is found, stop work in the immediate area, keep people and machinery back, and allow the fauna spotter catcher to assess whether it can move into retained habitat without handling.
  • Only an appropriately licensed and authorised person may capture, handle, transport or relocate the bird, and handling must be limited to what is necessary for safety, approval compliance and animal welfare.
  • Relocate a healthy bird only to nearby suitable retained habitat identified in the fauna management plan, with cover, leaf litter and access to feeding ground. Do not move birds to an unassessed site or across substantial barriers.
  • Place an injured bird in a quiet, secure, ventilated container and obtain veterinary or licensed wildlife carer assistance as soon as practicable.

During habitat disturbance: Stop-work triggers and records

  • Stop work in the affected zone if a painted buttonquail, active nest, dependent young, fresh concentration of platelets or other unassessed sign is found.
  • Stop work if exclusion fencing is damaged, the approved clearing limit is exceeded, the fauna spotter catcher loses line of sight, or machinery cannot be controlled safely.
  • Record each observation, capture, handling event, relocation, injury, death, nest, platelet concentration and stop-work event, including coordinates, date, time, habitat, action taken and outcome.
  • Notify the project environmental officer and the relevant regulator or approval contact immediately for any death, serious injury, nest loss, unauthorised clearing or suspected breach.
  • Retain photographs, GPS tracks, daily clearance checklists, fauna registers, permits and veterinary or wildlife carer records with the project environmental file.

After habitat disturbance: Completion checks

Completion of clearing does not end the fauna obligation. Check the disturbed edge and retained habitat, confirm that controls remain effective, and monitor whether the remaining ground habitat is still suitable for feeding, shelter and breeding.

  • Undertake a post-clearance inspection of the entire footprint, including the clearing edge, temporary work areas, access tracks, spoil areas and retained habitat margins.
  • Check for injured or trapped birds, damaged nests, displaced ground cover, new barriers, vehicle damage, sediment impacts and unplanned loss of retained vegetation.
  • Remove temporary materials and rehabilitate avoidable disturbance from access, laydown and stockpile areas as soon as they are no longer needed.
  • Repair or maintain exclusion fencing and signage until the project environmental officer confirms that the area is safe and no longer poses a fauna risk.

After habitat disturbance: Monitoring and reporting

  • Monitor retained habitat and rehabilitation areas for painted buttonquail presence, platelet activity, vegetation cover, weed invasion and new disturbance.
  • Repeat targeted searches or camera monitoring where the project removes known habitat, affects a known record, or causes substantial edge disturbance, with timing and effort set by the ecologist and approval conditions.
  • Compare post-work observations with pre-clearance records and report changes in occupancy, abundance indicators, habitat condition and management effectiveness.
  • Submit required fauna records, incidents, monitoring results and compliance reports to the relevant state database, regulator and approval authority.
  • Apply offsets or other approved compensatory measures where residual impacts remain and an approval or state policy requires them.

Rehabilitation actions: Restore feeding and nesting habitat

Rehabilitation should restore the ground structure used for feeding, nesting and shelter. It should favour locally appropriate native vegetation and avoid creating dense weed cover, bare exposed ground or barriers between habitat patches.

  • Re-establish locally appropriate native ground cover, grasses, heath and shrubs that provide shelter, leaf litter and open ground for scratching.
  • In mainland habitats, restore a mosaic of dry scrub, heath, woodland understorey and leaf litter rather than planting trees alone.
  • In Houtman Abrolhos habitat, use locally appropriate native Spinifex longifolius grassland on low dunes and open Atriplex cinerea and Halosarcia or Tecticornia halocnemoides shrubland on flats where those communities are characteristic.
  • Retain or reinstate suitable loose soil and low vegetation for ground nests, while preventing erosion and the formation of large bare blowouts.
  • Reconnect rehabilitation areas with retained vegetation and maintain movement routes through construction easements and around infrastructure.

Rehabilitation actions: Manage weeds, predators and fire

  • Control invasive weeds before they form dense stands that displace native ground vegetation, with particular attention to golden crownbeard and Paterson's curse in the Houtman Abrolhos.
  • Use weed hygiene for vehicles, machinery, fill and construction materials to prevent new infestations.
  • Do not introduce cats, rats, foxes or other non-endemic fauna to island habitat, and maintain quarantine and invasion monitoring where work occurs on offshore islands.
  • Prepare and implement a site-specific fire management approach that prevents accidental ignition and avoids burning all suitable habitat at once.
  • Do not use broadscale fire as a substitute for habitat management without ecological advice, approvals and a defined recovery objective.

Rehabilitation actions: Monitoring and success measures

  • Inspect rehabilitation at least during establishment and after major disturbance, recording survival, native ground-cover development, weed cover, erosion, litter, shelter structure and connectivity.
  • Use repeat platelet searches, dawn or dusk searches and motion cameras where the project has affected known or suitable habitat.
  • Treat successful rehabilitation as establishment of locally appropriate native ground cover and shrub structure, stable soil, controlled weeds, safe connectivity and evidence that painted buttonquail can forage or shelter.
  • For the Houtman Abrolhos subspecies, include population and vegetation monitoring in the recovery program, and assess whether rehabilitation supports occupied or potential refuge habitat.
  • Adapt planting, weed control, fire controls and access restrictions when monitoring shows that habitat is not recovering or new threats are developing.

Sources