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Yellow-throated Miner (Manorina flavigula)

The Yellow-throated Miner is a medium-sized, social honeyeater found across much of mainland Australia, especially in open woodland, dry forest, mallee and scrub. On development sites, clearing can remove feeding and nesting habitat, including roadside vegetation, regrowth and trees used for communal nests.

Conservation status

South Australia, National Parks and Wildlife Act 1972: Endangered.

Breeding season

Yellow-throated Miners can breed throughout the year, although the available sources identify a stronger breeding period from July to December and a peak from August to October. The species is described as sedentary, with larger groups possible outside the breeding period.

The monthly pattern is a practical representation of the reported breeding season, not a survey substitute. Active nests and dependent young should be assessed at the time of works.

  • Breeding: Breeding is reported throughout the year, with a breeding period from July to December and a peak from August to October.
  • Young: Nestlings and fledglings may be present when breeding occurs. Both parents and helpers feed the young, but the documents do not give a fledging period.
  • Movement or flocking: The species is described as sedentary. It may form larger groups during the non-breeding season.
  • Highest clearing risk: Clearing risk is highest from July to October because breeding activity peaks from August to October and nests, nestlings or dependent young may be present. Breeding can occur outside these months, so active nests require protection whenever detected.

Identification

The Yellow-throated Miner is a medium-sized honeyeater with grey plumage and a distinctive white rump. It is usually conspicuous because it forages and calls in noisy groups.

Adults are grey above from the crown to the tail and pale grey below, with light brown scalloping on the breast. The rump is white, and the wings and tail edges are washed yellow with white tail tips.

The forehead, sides of the throat, bare skin around the eye, bill, legs and feet are yellow. The face is black. Juveniles have a fluffier, paler grey chest and lack the clear adult scalloping.

Identification: Similar species

The white rump is the main field feature separating this species from other miners. The extent of yellow on the forehead and throat also assists identification.

The species can be confused with the Noisy Miner and the Black-eared Miner. Calls are higher pitched than those of the Noisy Miner but have a similar miner-like quality.

Identification of Black-eared Miner-like birds is difficult. Plumage characters can vary continuously, and the source literature reports that reliable determination may require capture and careful examination in the hand.

Identification: Field signs

Calls include a piping, musical pre-dawn song described as ‘pwee-pwee-pwe’, as well as harsh calls and chatter. Flocks are noisy and often give an alarm call when a predator approaches.

Nests are loose, cup-shaped structures made from twigs and grasses and lined with wool, fur or feathers. They are generally built in a tree fork about 3 to 6 metres above the ground.

Distribution: National range

The Yellow-throated Miner has the broadest range of the miner genus in Australia. It occurs across much of mainland Australia, with major gaps in the far north-east and the driest interior.

The species occurs across mainland Australia, including much of Western Australia, South Australia, the Northern Territory, Queensland, New South Wales and Victoria. It is absent or uncommon in the east of the Great Dividing Range, Cape York Peninsula, Arnhem Land, the western Gulf of Carpentaria, north-eastern Northern Territory and the most arid parts of the interior.

The species is associated with arid and semi-arid regions but also occurs in temperate, subtropical and tropical areas. Records extend through mallee, acacia, eucalyptus and casuarina country, as well as parks, gardens and farmland.

Distribution: Strongholds and subpopulations

The documents do not identify a national population estimate, a quantified trend or formally recognised strongholds and subpopulations.

The species is divided into five subspecies with different geographic distributions. The Murray Mallee is important in the conservation discussion because it is the area of historical contact and intergradation with Black-eared Miner forms.

Distribution: Project records

For a project site, record the habitat type, flock size, location, date, calls, white rump and any nesting activity. Treat Black-eared Miner-like birds and intermediate-plumaged birds as identification issues requiring specialist review rather than relying on a single plumage character.

National population estimate: Not provided

Quantified population trend: Not provided

Number of subspecies: Five

Habitat: Habitat types

The species uses open and relatively dry woodland habitats, but it is adaptable and may occupy disturbed vegetation. Habitat structure ranges from open woodland to denser mallee.

Typical habitat includes dry forests, open woodlands, mallee, acacia scrub, eucalyptus woodland and casuarina vegetation. The species is also recorded in parks, gardens, farmland, regrowth and roadside vegetation.

It occurs mainly in arid and semi-arid areas but also uses temperate, subtropical and tropical habitats.

Habitat: Vegetation structure

Yellow-throated Miner colonies are associated with relatively open vegetation in the Murray Mallee. The source review describes Yellow-throated Miner sites as having lower tree and trunk density, lower bark cover and larger-diameter trunks than denser mallee sites associated with Black-eared Miner-like birds.

Reported comparison values for Yellow-throated Miner colonies were 5.7 trees per 400 square metres, 10.6 trunks per 400 square metres, 13.1 percent canopy cover and trunks averaging 24.6 centimetres diameter at breast height. These values come from a disputed comparison of miner colony types and should not be treated as habitat thresholds.

Reported tree density in comparison sites: 5.7 trees per 400 square metres

Reported trunk density in comparison sites: 10.6 trunks per 400 square metres

Reported canopy cover in comparison sites: 13.1 percent

Reported mean trunk diameter: 24.6 centimetres diameter at breast height

Habitat: Climate and elevation

The documents describe broad climatic zones but do not provide an elevation range. The species is recorded from arid, semi-arid, temperate, subtropical and tropical parts of mainland Australia.

Foraging habitat: Diet

Yellow-throated Miners forage in noisy groups through the canopy, foliage, bark and ground layer. They use both animal and plant food resources.

The diet includes insects and other invertebrates, nectar, pollen, lerps, berries, fruit and seeds. The Australian Museum specifically records insects, nectar, berries and fruit.

The documents do not identify particular plant species that provide the main food supply.

Foraging habitat: Foraging behaviour

Birds forage at all levels of the canopy and on the ground. They probe flowers, glean insects from leaves and bark, catch insects in flight and feed on the ground.

Foraging commonly occurs in small groups or noisy flocks. The species uses open woodland, mallee, scrub, farmland, gardens and disturbed vegetation where suitable food resources remain.

Foraging habitat: Site assessment

During pre-clearing checks, inspect flowering trees and shrubs, foliage, loose bark, canopy edges and ground cover for active foraging flocks. Record repeated use of the site because the species can forage across several vegetation layers and may be missed by a single short observation.

Breeding habitat: Breeding biology

The species breeds communally, with breeding pairs assisted by other group members. Nests are placed in tree forks and can occur in open woodland and mallee vegetation.

Breeding can occur throughout the year. The reported breeding period is July to December, with a peak reported from August to October.

Both parents and helpers feed the young. Nests are loose cups made from twigs and grasses and lined with wool, fur or feathers.

The documents do not provide information on age at maturity, lifespan or incubation period.

Breeding season: Throughout the year; reported July to December, with a peak from August to October

Clutch size: Typically 3 to 4 eggs

Nest height: About 3 to 6 metres above the ground

Incubation period: Not provided

Age at maturity: Not provided

Lifespan: Not provided

Parental care: Both parents and helpers feed the young

Breeding habitat: Breeding habitat features

Breeding habitat includes trees with suitable forks about 3 to 6 metres above ground, together with nearby vegetation that supports insects, nectar and fruit for adults and dependent young.

Communal breeding means that a single active nest may be associated with several adults and helpers. A flock showing repeated alarm calls, nest visits or food delivery should be treated as evidence of a breeding colony nearby.

Breeding habitat: Clearing checks

Before clearing, inspect tree forks and lower to mid-canopy vegetation for cup-shaped nests made from twigs and grasses. Recheck trees where miners repeatedly alarm, carry food or enter the canopy.

Sheltering habitat: Likely shelter features

The documents do not describe dedicated roost sites, hollows, burrows or dens. Shelter and night roosting are therefore best considered in relation to the trees and dense vegetation used by social flocks.

The species uses woodland, mallee, scrub and casuarina vegetation, including disturbed regrowth and roadside vegetation. Retained trees, canopy cover and connected patches may provide perching and shelter for flocks.

No specific roost tree species, hollow dimensions, ground-cover requirements or roost height are given in the documents.

Sheltering habitat: Site inspection

Inspect retained trees, dense shrub patches, mallee edges and connected vegetation for repeated flock activity before vegetation removal. Record where birds congregate outside active feeding periods, especially near known nests.

Threats: Habitat clearing and fragmentation

The main documented conservation issue is habitat change in the Murray Mallee and contact with Black-eared Miner forms. For development projects, the immediate risk is removal of nesting and foraging vegetation.

Clearing of mallee and woodland can remove trees used for nesting and vegetation used for feeding. The species also uses regrowth and roadside vegetation, so small or disturbed patches should not automatically be treated as unoccupied habitat.

Historical clearing in the Murray Mallee changed the distribution and contact between miner forms. The source review disputes some earlier assumptions about habitat separation, but confirms that clearing is central to the conservation history of the group.

Threats: Hybridisation and identification

Hybridisation or intergradation with the endangered Black-eared Miner is a documented conservation concern. The status and identification of Black-eared Miner-like birds remain difficult, and intermediate plumages can occur.

The last positively identified Black-eared Miner in the source review was a specimen collected in 1949. Recent field identifications have been considered unreliable unless birds were captured and examined carefully in the hand.

Threats: Fire and other pressures

The documents discuss post-fire mallee of different ages and report Yellow-throated Miner use of regrowth as young as 3 to 11 years at one site. They do not establish a fire-age threshold for Yellow-throated Miners.

The documents do not identify road mortality, introduced predators, disease or hydrology change as documented threats to this species. Project assessments should still record these pressures where they occur, but should not attribute species-specific effects without site evidence.

Survey methodology: 1. Habitat and flock search

Survey this social, noisy honeyeater in open woodland, mallee, scrub, roadside vegetation and other suitable dry habitats. Use visual flock searches with call detection, and time breeding searches between July and December, with additional attention from August to October.

Typical habitat: Dry forests and woodlands, especially mallee, as well as open woodland, scrub, regrowth, roadsides, parks, gardens and farmland.

Key field marks: White rump, yellow throat and forehead, yellow bare eye skin, bill, legs and feet, grey upperparts and pale grey underparts.

  • Inspect open woodland, mallee, acacia, eucalyptus and casuarina vegetation, including regrowth, roadside vegetation, farmland, parks and gardens.
  • Search systematically through the canopy, mid-storey, ground layer and retained flowering vegetation because the species forages at all levels and on the ground.
  • Record groups, flight direction, white rumps, yellow throat and forehead, yellow eye skin, bill, legs and feet, and the pale grey underparts with breast scalloping.
  • Treat noisy groups as a detection opportunity because the species is social, territorial and usually forages in flocks.

Survey methodology: 2. Dawn and call survey

Best detection period: Pre-dawn and dawn.

Detection notes: The species is noisy, sociable, vigilant and may be the first bird to alarm at a predator.

  • Survey around dawn and include the pre-dawn period because flocks can give a musical pre-dawn song.
  • Listen for the piping call described as ‘pwee-pwee-pwe’, together with harsh calls and chatter.
  • Record the location, time, direction of calling, flock size where visible, habitat and behaviour.
  • Use caution when identifying calls because the species sounds similar to the Noisy Miner, although its calls are higher pitched.

Survey methodology: 3. Breeding and nest search

Breeding season: July to December.

Reported peak: August to October.

Nest height: About 3 to 6 metres above ground.

Nest type: Loose, cup-shaped nest of twigs and grasses, lined with wool, fur or feathers.

  • Complete targeted nest searches during the breeding period, July to December, with additional attention from August to October when breeding peaks according to one source.
  • Search tree forks and observe adult movements, carrying of nesting material, feeding visits and fledgling activity without approaching active nests unnecessarily.
  • Look for loose, cup-shaped nests made from twigs and grasses and lined with wool, fur or feathers.
  • Inspect suitable tree forks at about 3 to 6 metres above ground where safe and authorised, because nests are commonly reported at this height.
  • Record helpers attending nests because breeding is communal and other group members may feed young.

Survey methodology: Minimum effort and reporting

  • Use a documented survey design that covers all suitable habitat and records the date, start and finish times, weather, observers, method, route or area searched, detection conditions and results.
  • Repeat surveys when access, weather, dense vegetation, noise or season limits detection, because the supplied documents do not provide a species-specific number of nights, hours, transect length or trap nights.
  • Do not use trapping as a default method for this species, because the supplied documents describe detection by visual observation and calls and provide no trapping effort or protocol.
  • Submit confirmed records, including photographs or sound recordings where available, to the relevant state wildlife database and retain the project survey data.
  • Escalate uncertain records to a suitably experienced ornithologist, particularly where Yellow-throated Miners could be confused with Noisy Miners or Black-eared Miner forms.

Before habitat disturbance: Avoid and minimise

Avoid clearing suitable woodland and mallee habitat wherever practicable. Plan works around breeding activity, protect retained flock habitat and confirm the permits and approvals that apply in the project jurisdiction.

Relevant habitat: Open woodland and scrub, especially mallee, including disturbed regrowth and roadside vegetation.

  • Retain connected patches of open woodland, mallee, acacia, eucalyptus and casuarina vegetation rather than leaving isolated roadside strips or small remnants where a larger retained area can be protected.
  • Retain mature and flowering trees, dense mallee patches, ground foraging areas and vegetation used by flocks for feeding and shelter.
  • Avoid removing known or suspected nest trees during July to December, and give additional attention to active nests between August and October.
  • Maintain a buffer around active nests and occupied flock areas based on the ecologist’s site risk assessment, noise, vibration, access and the group’s response.

Before habitat disturbance: Approvals and planning

  • Check the current EPBC Act listing before works commence; the supplied project information identifies the species as not listed nationally and as Endangered in South Australia.
  • Confirm state wildlife permits, animal ethics requirements, native vegetation approvals and any local conditions before survey, capture, handling or relocation.
  • Prepare a fauna management plan that identifies suitable habitat, active nests, access limits, fauna spotter catcher responsibilities, stop-work triggers, release areas and reporting requirements.
  • Stage clearing so the fauna spotter catcher can inspect each work area immediately before disturbance and supervise the removal of habitat features.

Before habitat disturbance: Site preparation

  • Complete a pre-clearance survey of all vegetation and habitat within the disturbance footprint and adjacent retained areas.
  • Mark retained trees, active or suspected nests, exclusion areas, access tracks and no-go habitat before machinery enters the site.
  • Use exclusion fencing where it can prevent machinery and workers entering retained habitat without creating a barrier to bird movement.
  • Brief operators on the species’ white rump, yellow throat and noisy flock behaviour so sightings are reported immediately.

During habitat disturbance: Daily controls

Keep clearing under direct environmental control. The fauna spotter catcher must have authority to pause work when a bird, active nest or unexpected habitat risk is identified.

  • Inspect the work area each day before disturbance, including retained trees, flowering vegetation, ground cover, access edges and any known nest locations.
  • Confirm that exclusion fencing, nest buffers, no-go markers and fauna escape routes remain intact after weather, vehicle movements or site changes.
  • Start work only after the fauna spotter catcher and machine operators understand the day’s clearing sequence, exclusion zones and stop-work triggers.
  • Limit noise, vibration and unnecessary vehicle movement near active nests and occupied flock areas.

During habitat disturbance: Fauna spotter catcher and machinery

  • Position the fauna spotter catcher where the clearing face, machinery attachments and likely escape routes can be seen safely.
  • Clear in a staged direction towards retained habitat so birds can move away from machinery without being driven into traffic, buildings or other hazards.
  • Stop machinery immediately when a bird is within the work zone, shows injury or distress, an active nest is found, or a habitat feature is not covered by the approved clearing method.
  • Do not allow workers to chase, corner or handle a healthy flying bird unless the authorised fauna handler considers capture necessary for safety or welfare.

During habitat disturbance: Nests, trees and other habitat features

  • Do not fell or disturb a tree containing an active nest until the ecologist confirms the required exclusion, timing and approval conditions.
  • Inspect tree forks and canopy movement before felling because reported nests are cup-shaped and may be 3 to 6 metres above ground.
  • Handle felled vegetation progressively and retain suitable branches, logs and ground cover in retained or rehabilitation areas where this is consistent with the approved plan.
  • Do not assume that a site is clear because the species is mobile, as noisy flocks may leave temporarily and return to feed or roost.

During habitat disturbance: Animal found, stop-work and records

  • If a Yellow-throated Miner is found, stop the immediate task, keep people and machinery back, and allow the bird to leave if it is mobile and uninjured.
  • Only an appropriately authorised and trained person may capture, handle or relocate the bird, and handling must be limited to what is needed for safety, assessment and approved relocation.
  • Release a captured healthy bird into nearby retained suitable habitat agreed by the project ecologist, with records of the capture, condition, location and release time.
  • Take an injured bird to an appropriately qualified veterinarian or authorised wildlife carer as soon as practicable and record the transfer.
  • Stop work for an active nest, injured or trapped bird, repeated flock use of the work area, unexpected breeding activity or any clearing outside the approved footprint.
  • Record every fauna interaction, including species identification, flock size, location, time, behaviour, action taken, handler, release or treatment outcome and photographs where appropriate.

After habitat disturbance: Post-clearance checks

Check the completed work area and retained habitat for delayed impacts. Continue controls until the site is stable and the project ecologist confirms that fauna risks have been closed out.

  • Inspect the cleared edge, retained trees, adjacent mallee and nearby flowering vegetation for stranded, injured or displaced birds after each clearing stage.
  • Recheck known nest trees and nearby retained habitat during the breeding period, July to December, and record any continued adult activity or fledgling presence.
  • Remove or repair damaged exclusion fencing and confirm that no machinery, spoil or access route has entered retained habitat.

After habitat disturbance: Monitoring and reporting

  • Monitor retained habitat for flock presence, calling, feeding and nesting during the period specified in the fauna management plan.
  • Compare post-work records with pre-clearance observations, including flock locations, group size, habitat condition and breeding activity.
  • Report any mortality, injury, nest disturbance, unauthorised clearing or repeated displacement to the project manager and relevant regulator as required by approvals.
  • Submit confirmed post-work records to the relevant state wildlife database.

After habitat disturbance: Ongoing controls and offsets

  • Maintain retained vegetation, nest buffers, access restrictions and weed controls for the period required by project approvals.
  • Apply approved offsets or supplementary habitat actions where impacts cannot be avoided, and link them to measurable habitat retention or restoration outcomes for the species.
  • Review the management plan if monitoring shows that flocks have lost feeding areas, breeding trees or movement routes.

Rehabilitation actions: Restore species habitat

Rehabilitation should restore open woodland or mallee structure and provide feeding, shelter and nesting resources. Use local provenance plants and measure whether birds return to the rehabilitated area over time.

Recorded food resources: Insects, nectar, pollen, lerps, seeds, berries and fruit.

  • Replant locally appropriate acacia, eucalyptus, mallee and casuarina species that match the pre-clearing community and provide canopy, flowering and insect resources.
  • Restore a connected vegetation structure rather than a narrow isolated strip where the project footprint allows.
  • Retain or reinstate suitable ground cover and fallen timber without creating a fire or access hazard, because the species forages on the ground as well as through the canopy.
  • Avoid designing rehabilitation as dense vegetation only, because the Yellow-throated Miner commonly uses open woodland and open mallee habitats.

Rehabilitation actions: Nesting and site management

Reported nest position: Tree fork about 3 to 6 metres above ground.

  • Protect existing mature trees and natural nest sites within rehabilitation areas wherever possible.
  • Use nest boxes only where the ecologist identifies a demonstrated shortage of suitable nest sites and the approved plan specifies their design, placement and maintenance.
  • Control weeds that reduce native flowering, canopy and ground foraging resources, and manage introduced predators and domestic animals where they affect bird use.
  • Develop fire management with the land manager so planned burns do not remove connected mallee or woodland habitat during the species’ breeding period unless approved for ecological management.

Rehabilitation actions: Monitoring and success measures

Suggested biological outcome: Regular use by Yellow-throated Miner flocks for feeding, shelter or breeding, supported by stable native woodland or mallee structure.

  • Survey rehabilitated areas for Yellow-throated Miner calls, visual sightings, flock size, feeding and nesting using the same methods and observation periods used before disturbance.
  • Measure survival and cover of planted native trees and shrubs, retention of connected habitat, flowering resources, weed cover and protection of retained nest trees.
  • Record whether birds use the area across the breeding period from July to December and whether adults show nesting or fledgling behaviour between August and October.
  • Set project-specific completion criteria before planting, then maintain and replace failed plantings until the approved criteria are met.

Sources