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Diamond Dove (Geopelia cuneata)

The Diamond Dove is a small Australian ground-feeding dove of arid and semi-arid open woodland, shrub savanna and grassland near water. It may occur on development sites where native vegetation, low nesting trees, grass seed resources and nearby water remain, and breeding birds can be affected by vegetation clearing, noise and disturbance.

Conservation status

Victoria, Flora and Fauna Guarantee Act 1988: Vulnerable.

Breeding season

The Diamond Dove has no single breeding calendar across Australia. Breeding is rainfall driven, with spring activity noted in southern Australia, so the timing table should be adjusted after local rainfall and survey observations.

Month values are a broad planning guide, not a substitute for local rainfall data, current records and pre-clearing nest checks.

  • Breeding and laying: Breeding is opportunistic and linked to rainfall. Spring is the main period reported for southern Australia, but breeding may occur at other times when conditions are favourable.
  • Eggs and nestlings: Clutches usually contain 2 eggs. Incubation lasts about 12 to 14 days and the nestling period is about 11 to 12 days.
  • Dependent fledglings: Young leave the nest at about 11 to 12 days and may remain dependent on adults for about another 10 days. Timing follows breeding and rainfall rather than a fixed national season.
  • Local movement: The species is described as present year round in desert and semi-desert regions. It may occur in southern parks and gardens during periods of extreme dryness in central Australia. No migration schedule is provided.
  • Highest clearing risk: Risk is highest after local rainfall and during the local breeding period, with spring the main period reported for southern Australia. Because breeding can occur opportunistically, pre-clearing nest checks are needed throughout the year.

Identification

The Diamond Dove is a very small, long-tailed dove with a red or orange-red eye-ring and white wing spots. It is usually detected on the ground in pairs or small groups, or by its soft, slow cooing.

Adults are about 19 to 21 cm long and generally weigh about 38 to 45 g. The head, neck and breast are blue-grey to slate-grey. The back and tail are brown-grey, the belly is pale or creamy, and the wings have fine white spots edged with black. The eye is red or orange-red and is surrounded by a conspicuous red to orange-red bare ring. The bill is dark grey and the legs and feet are pinkish.

Length: About 19 to 21 cm.

Mass: About 38 to 45 g.

Identification: Sexes and age classes

Males generally have a bluer-grey head, neck and breast and a brighter eye-ring. Females are usually browner around the hindneck and mantle, with a less pronounced eye-ring. Juveniles have a pale grey bill, fawn iris and eye-ring, grey legs and feet, and lack the clear white wing spots of adults.

Identification: Similar species and field signs

The species may be confused with the small Peaceful Dove. The Diamond Dove is best separated by its conspicuous white wing spots and red or orange-red eye-ring. On the ground it has a short, quick, waddling or tripping gait. Its flight is strong and direct, and the wings may produce a distinctive whistling sound.

The call is a soft, mournful or slow series of coos. A commonly described sequence is two long coos followed by a pause and then a long, short and long coo. Alarm calls are shorter and louder. Nests are fragile, loose platforms of grasses and twigs in low branches of trees or shrubs. Tracks, scats and roost pellets are not described in the supplied documents, so they should not be used alone for identification.

  • Search low branches and shrubs for loose platforms made from a few grasses and twigs.
  • Treat repeated soft cooing, especially from low woodland or shrub cover near open ground, as a useful detection cue.
  • Confirm visual records using the white wing spots and red or orange-red eye-ring.

Distribution: National range

The Diamond Dove is an Australian species reported from much of the continent, particularly arid, semi-arid and central, western and northern regions. The supplied documents do not provide a state-by-state atlas, mapped bioregion limits, population estimate or population trend.

The species is described as occurring across most of Australia, with records concentrated in central, western and northern parts of the country. It is also reported from southern Australia, including parks and gardens, particularly when central Australia is very dry.

One supplied account states that it is absent from south-western and south-eastern Australia and from coastal south-eastern Queensland and New South Wales. These broad statements should be checked against current state and territory mapping before a site assessment.

  • Use current state or territory biodiversity databases to confirm whether the species is mapped in the project bioregion.
  • Do not assume that a site outside the main arid range is unsuitable, because birds may appear in southern parks, gardens or other watered areas during dry conditions.

Distribution: Conservation status and population information

The supplied project information records the species as not listed under the EPBC Act and as Vulnerable in Victoria. A separate source describes it as Least Concern internationally and notes that the Victorian advisory list classified it as near-threatened in 2007. These classifications are not identical, so the current Victorian legal and advisory status should be checked before works begin.

EPBC Act: Not listed in the supplied project information.

Victoria: Recorded as Vulnerable in the supplied project information. Another supplied source reports a 2007 advisory classification of near-threatened.

Population size: Not given in the supplied documents.

Population trend: Not given in the supplied documents.

  • Obtain the current state or territory listing and site-specific occurrence records during project planning.
  • Do not infer a national population trend from the supplied documents, because no population size or trend is given.

Habitat: Habitat types

Diamond Doves use open, dry country with scattered trees or shrubs, grass seed resources and accessible water. They are strongly associated with arid and semi-arid conditions but may use modified sites when suitable open ground, cover and water are retained.

Recorded habitat includes desert, semi-desert, dry open woodland, tree and shrub savanna, and lightly arid or semi-arid country. The species is generally found on or close to the ground during the day, with trees and shrubs used for resting and nesting.

Water appears to be a key site feature. One supplied account states that open water should be available within a few kilometres. The exact distance used by individual birds is not provided.

Habitat: Structure and climate

Suitable sites have open ground for feeding, fine grasses or other seed-producing plants, and low trees or shrubs for nests and resting. The species is adapted to high temperatures and intense solar radiation. Adults can remain active during the hottest part of the day and have been recorded tolerating very high ambient temperatures while foraging on the ground.

Ambient heat recorded in study conditions: Adults tolerated ambient temperatures up to about 60 to 70°C for at least 1 hour while foraging on the ground.

Water proximity: Open water is reported as needed within a few kilometres, but no more precise distance is supplied.

  • Map open ground, grass cover, scattered trees and shrubs, and permanent or temporary water within and around the work area.
  • Retain connected patches of low woody cover beside open feeding areas where practicable.
  • Inspect dry creek lines, water points, stock water areas, parkland and lightly wooded edges because the species may use these areas even when surrounding country is very dry.

Foraging habitat: Food and feeding method

The Diamond Dove is primarily a ground-feeding seed eater. It forages in open areas, often close to cover and water, and may continue feeding during the hottest part of the day.

The main diet is fine seed from grasses. Ants are also reported in the diet. Birds feed almost exclusively on the ground, moving in small, quick steps and often occurring in pairs or small groups.

The species is adapted to hot, dry conditions. It can forage on hot ground during the day and uses panting and gular fluttering to lose heat at high temperatures.

  • Search open grassed areas, bare ground with scattered grasses, stock yards, road verges and water edges for feeding birds.
  • Record the grass seed resource and any ant-rich bare ground within the disturbance footprint.
  • Avoid treating the absence of surface water during a single visit as evidence that the site is unsuitable.

Foraging habitat: Foraging extent

The supplied documents do not give a home-range size, daily foraging distance or population density. Water is reported to occur within a few kilometres of occupied habitat, but this should not be treated as a measured foraging range.

  • Assess the work area together with nearby open feeding habitat and water rather than assessing isolated vegetation patches only.
  • Where clearing is unavoidable, retain nearby seed-producing grass cover and low resting cover outside the disturbance footprint.

Breeding habitat: Breeding biology

Breeding is linked to rainfall and favourable conditions rather than to one fixed season across Australia. Nests are simple, exposed platforms in low trees or shrubs, and young develop rapidly.

Diamond Doves are opportunistic breeders. Breeding is associated with rainfall, and spring breeding is noted for southern Australia. Pairs can raise additional broods when conditions remain favourable. Both adults attend the nest and continue feeding fledged young after they leave it.

Breeding trigger: Rainfall and favourable food conditions.

Typical southern season: Spring is reported as the main breeding period in southern Australia, but breeding can occur opportunistically at other times.

Clutch size: Usually 2 eggs.

Incubation: About 12 to 14 days. The detailed study recorded an average of 12 days.

Nestling period: About 11 to 12 days. The detailed study recorded an average of 10.8 days.

Fledging and dependence: Young leave the nest at about 11 days in the detailed study and are fed by adults for about another 10 days.

Age at maturity: Reported as about 3 to 4 months.

Lifespan: Not given in the supplied documents.

  • Treat low trees and shrubs as potential nesting habitat whenever rainfall has increased food availability.
  • Check nests before clearing in suitable open woodland, shrub savanna and watered sites.
  • If a nest is found, establish a temporary no-disturbance area based on the project method and current permit conditions, and arrange follow-up checks after the young have fledged.

Breeding habitat: Nest habitat

The nest is a loose, fragile platform made from grasses and twigs. It is placed in low branches of a tree or shrub. Nests are generally visible and accessible to predators, so suitable nesting habitat includes low woody cover close to open feeding areas and water.

  • Inspect low branches in trees and shrubs before clearing, including isolated plants within otherwise open ground.
  • Search for fresh nest material, adults carrying twigs, repeated visits to one low branch, and adults giving alarm calls.
  • Retain suitable low woody cover beside grass seed resources where the work design allows.

Sheltering habitat: Day shelter and roosts

The species uses low trees and shrubs for resting and nesting, but spends much of the day on the ground. The supplied documents do not describe hollows, burrows, dens or a fixed roost size.

Diamond Doves are mainly on the ground during the day. They use branches of trees and shrubs at night and during rest periods. In contrast with many birds of hot country, they may remain exposed on the ground and sun themselves during the hottest part of the day rather than moving into shade.

  • Inspect low branches and dense parts of shrubs for resting birds, especially around dawn, dusk and during daytime rest periods.
  • Retain some low woody cover beside open ground and water.
  • Do not assume that exposed, sunlit ground is unused habitat during hot weather.

Sheltering habitat: Shelter features not documented

No species-specific use of tree hollows, burrows, caves, dense litter, artificial structures or roost dimensions is provided in the supplied documents. No reliable track, scat or pellet description is provided either.

  • Base habitat inspections on direct sightings, calls, nests and repeated use of ground-feeding areas rather than searching for dens or hollows.
  • Record the height, plant species and condition of any nest or regular roost found during pre-clearing checks.

Threats: Clearing and construction

The supplied documents identify exposed nests and predators as biological risks, and clearing can remove the combination of open feeding ground, low nesting cover and nearby water. Species-specific evidence for roads, disease, fire and hydrology change is limited in the supplied material.

Clearing can remove low trees and shrubs used for nests and resting, grass seed resources used for feeding, and access routes between feeding areas and water. Nests are fragile, exposed and easy to reach, so direct clearing during breeding can kill eggs or dependent young.

Noise, machinery movement and repeated human activity near an active nest may cause disturbance. The supplied documents do not provide a tested disturbance buffer or avoidance distance.

  • Complete a targeted pre-clearing inspection after rainfall or when birds are active, and check low branches in all suitable trees and shrubs.
  • Stage clearing outside the likely breeding period where practicable, while recognising that rainfall can produce breeding at other times.
  • Retain open feeding areas, low woody cover and nearby water in the final site layout where practicable.
  • Stop work and obtain ecological advice if an active nest, recently fledged young or repeated adult nest attendance is found.

Threats: Predators and fragmentation

The species has no strong nest defence described in the supplied study. Its nests are normally visible and accessible, and nest predators are identified as a risk. Removing cover or dividing habitat may increase exposure of birds moving between feeding, nesting and watering areas, although the supplied documents do not quantify fragmentation effects.

  • Avoid leaving isolated nesting shrubs surrounded by cleared ground where a connected retained patch can be provided.
  • Limit unnecessary access tracks and keep machinery away from retained nesting and roosting vegetation.
  • Manage construction waste and food sources so they do not attract additional nest predators.

Threats: Roads, fire, disease and hydrology

The supplied documents do not report species-specific road mortality, disease impacts, fire responses or measured effects of altered drainage. Hydrology remains relevant because the species is associated with water and breeding responds to rainfall. Changes that remove, isolate or unexpectedly concentrate water may alter use of a site.

Apply standard fauna protection measures for these hazards, but do not describe them as demonstrated Diamond Dove population threats without project or regional evidence.

  • Keep vehicles to defined routes and use low speeds near retained feeding and nesting habitat.
  • Prevent unplanned fire from damaging retained low woody cover and grass seed resources.
  • Maintain natural drainage where practicable and avoid removing known water access points.
  • Report unusual sick or dead birds through the appropriate wildlife and biosecurity channels.

Survey methodology: 1. Diurnal ground searches

Diamond Doves are small, ground-foraging birds of lightly arid and semi-arid Australia. Surveys should focus on open woodland, tree and shrub savanna, grass seed resources and water points, with effort adjusted for the size and condition of the proposed clearing area.

Search during daylight when Diamond Doves are active and feeding on the ground. Prioritise open ground beneath or beside trees and shrubs, grassed areas and tracks leading to water.

Walk all habitat that will be cleared and retained habitat nearby. Record birds, pairs, small groups, feeding activity, flight direction, calls and the location of water sources.

Use slow, quiet searches because the species has a distinctive waddling ground gait but a strong, direct flight when flushed.

Survey methodology: 2. Water point and movement surveys

Inspect open water points and the routes between water and nearby feeding habitat. The species is associated with lightly arid and semi-arid areas but requires water within a few kilometres.

Survey both the proposed disturbance area and nearby retained habitat where birds may move during clearing. Record the type, location and condition of each water source.

Do not rely on a single water-point observation to define the local population, because birds may forage away from water and may occur in pairs or small groups.

Survey methodology: 3. Call and visual detection

Listen for the species' slow, soft coos, including two long coos followed by a pause and a longer, shorter and longer sequence. Record the direction of calling birds and confirm the identification visually where practicable.

Use the white wing speckles, red eye and orange to red eye-ring to separate Diamond Doves from similar small doves. Juveniles lack the adult white wing spots and have paler bills, irises and eye-rings.

Do not treat the absence of calls as evidence that the species is absent. Diamond Doves can be quiet and may be detected first when walking or flying from the ground.

Survey methodology: 4. Timing and effort

Time surveys to the local activity period and to conditions that allow safe observation of birds on open ground. Diamond Doves are diurnal and can remain active during the hottest part of the day, so do not restrict searches to early morning or late afternoon.

Give additional attention to periods following rainfall, when breeding activity is more likely and food availability may improve. Breeding is linked to rainfall and is seasonal in southern Australia, with spring nesting reported there.

The supplied documents do not provide a project survey guideline or a prescribed number of transects, nights, hours, trap nights or survey area. A suitably qualified ecologist must set effort for the project area, habitat quality, season, weather and proposed impact, and document the rationale.

Survey methodology: Minimum effort and reporting

  • Survey every habitat unit proposed for clearing, including open woodland, shrub and grass areas, water points and access routes between them.
  • Record survey date, start and finish times, weather, visibility, observers, route or transect coverage, area searched, water points inspected and all detections or non-detections.
  • Map each record with coordinates and identify whether the bird was feeding, calling, roosting, nesting or moving through the site.
  • Submit verified records to the relevant state wildlife database and retain the project survey data, photographs and maps in the environmental record.
  • Check the current state conservation listing and permit requirements before fieldwork, particularly in Victoria, where the supplied material reports state protection and a separate advisory-list category.

Before habitat disturbance: Avoid and minimise

Plan the works around the species' use of open ground, grass seed resources, low trees and shrubs, and nearby water. The approval pathway must be checked before any clearing or construction begins.

Retain open woodland, tree and shrub savanna, native grass cover and nearby water points where practicable.

Retain connected areas between feeding ground, sheltering vegetation and water. Avoid creating isolated retained patches surrounded by cleared ground.

Avoid clearing low branches and shrubs unnecessarily. Diamond Doves build fragile nests in low tree or shrub branches.

Keep disturbance away from known feeding, nesting and movement areas where the design allows. Map retained habitat and no-go areas on construction plans.

Before habitat disturbance: Approvals and work planning

Confirm whether the action requires an EPBC Act referral. The supplied material states that Diamond Dove is not currently listed under the EPBC Act.

Check the current state listing, wildlife permits and any approval conditions before capture, handling, clearing or relocation. The supplied material identifies Victorian protection and reports a near-threatened category on the 2007 Victorian advisory list.

Plan staging so that the smallest practicable area is opened at one time. Maintain access to retained habitat and water until the relevant clearing stage is complete.

Prepare a species-specific fauna management plan covering survey results, exclusion areas, fauna spotter catcher authority, stop-work triggers, handling, release sites, injured wildlife and reporting.

Before habitat disturbance: Pre-clearance preparation

Complete a pre-clearance inspection of all areas to be disturbed, including ground, low trees and shrubs, grassed areas, water points and the proposed machinery access route.

Mark retained habitat, nest locations, water points, exclusion zones and fauna movement routes before machinery enters the site.

Inspect low branches and shrubs for the species' loose nests and for eggs or young. The usual clutch is two eggs, and the nestling period is about 11 to 12 days in the supplied field accounts and 10.8 days in the study population.

Use exclusion fencing where it can prevent machinery or people entering retained habitat without blocking the birds' access to essential water and feeding areas. The fauna ecologist must set the location and inspect the fencing.

During habitat disturbance: Daily controls

A fauna spotter catcher must control the interface between wildlife and machinery. Work should stop when an animal, nest or other unexpected fauna risk cannot be managed safely under the approved plan.

Conduct a pre-start fauna inspection each day in the active work area, machinery travel paths, retained vegetation and exclusion zones.

Keep machinery within marked limits and maintain clear sight lines for the spotter catcher. Do not stockpile materials or park machinery beside retained feeding habitat or water points.

Recheck areas after breaks, weather changes, machinery relocation and any event that could move birds into the work zone.

Keep dogs, unauthorised people and unnecessary vehicle movements out of retained habitat.

During habitat disturbance: Spotter catcher and machinery

The spotter catcher must remain close enough to see the work face and must have an agreed stop signal that the operator can see or hear immediately.

Use a slow, staged approach around low trees, shrubs, nests and ground-feeding areas. The spotter catcher must inspect each stage before machinery proceeds.

Only an appropriately authorised person may capture, handle or relocate a Diamond Dove. Follow the permit, project fauna management plan and state requirements.

Release a healthy bird into nearby retained habitat selected by the fauna ecologist, with suitable cover, feeding ground and access to water. Do not move birds farther than necessary.

During habitat disturbance: Fauna and habitat features

Stop work and establish an exclusion area if a Diamond Dove, nest, egg or dependent young is found in the work zone.

Treat low branches and shrubs as potential nesting habitat during the breeding period, particularly after rainfall and during spring in southern Australia.

Inspect logs, rocks, dense ground cover and other shelter features before they are removed, even though the supplied documents do not identify these as specialised Diamond Dove nest sites.

Do not remove or block water points used by the species until the fauna ecologist has confirmed that suitable access remains in retained habitat.

During habitat disturbance: Finds, injuries and stop-work records

Do not chase a bird through active machinery areas. Stop the task, secure the work zone and allow the authorised fauna handler to assess the animal.

Do not handle eggs, young or injured birds unless authorised and trained. Place injured animals with a veterinarian or permitted wildlife carer as soon as practicable.

Stop work for any unplanned nest, dependent young, injured bird, repeated bird entry into the work zone, damaged exclusion fence or loss of access to retained habitat or water.

Record each find, action, handler, release or treatment location, time, condition of the bird, photographs, permit details and the machinery or work stage involved.

After habitat disturbance: Post-clearance checks

Close-out must confirm that the site has not left birds isolated from feeding areas, shelter or water. Records should support compliance reporting and future management.

Inspect the cleared edge and retained habitat for birds, nests, injured animals, damaged fencing and new hazards immediately after each clearing stage.

Confirm that retained grassed feeding areas, low shrubs, trees and access to water remain available and connected.

Remove temporary exclusion fencing only after the fauna ecologist confirms that no further clearing-related risk remains and that the fence is not needed to protect rehabilitation areas.

After habitat disturbance: Monitoring and reporting

Monitor retained habitat and rehabilitation areas at the frequency and duration set in the approved fauna management plan. Use the same locations and methods where possible so results can be compared.

Report all captures, relocations, injuries, deaths, nests, stop-work events and non-compliances to the project environmental officer and the relevant regulator where required.

Update the project species register and submit verified records to the relevant state wildlife database.

Review monitoring results after each work stage and change controls if birds continue to enter the active work area or if water and feeding habitat have been reduced.

After habitat disturbance: Offsets and residual impacts

Assess any unavoidable loss of suitable habitat under the applicable approval and state planning framework.

If an offset or compensatory action is required, target connected open woodland, shrub and native grass habitat with nearby water rather than isolated ornamental plantings.

Document the area, condition, management actions and tenure of any offset or retained habitat in the project approval records.

Rehabilitation actions: Habitat structure and planting

Rehabilitation should restore the open, dry habitat used for ground feeding while retaining trees and shrubs for cover and nesting. Measures must be matched to the local pre-clearing community and approval conditions.

Re-establish locally native grasses that can provide seed on open ground, together with locally native shrubs and trees characteristic of the pre-clearing open woodland or tree and shrub savanna.

Retain or replant low branches and shrubs suitable for the species' loose nests. The documents do not identify particular Australian plant species, so plant selection must follow the local vegetation community and the project rehabilitation specification.

Maintain open ground between vegetation patches so birds can forage and move between feeding areas and water.

Do not rely on nest boxes as a substitute for the low tree and shrub structure used for nesting unless a qualified ecologist and the approval authority specifically endorse them.

Rehabilitation actions: Water, shelter and site treatments

Retain or reinstate reliable water access within the surrounding habitat, while preventing steep edges, entrapment points and construction hazards.

Keep suitable ground cover and retain natural logs, rocks and other shelter features where they are part of the local habitat. Reinstatement of these features must not obstruct access to feeding ground or water.

Control weeds that reduce native grass seed resources or close the open structure used for ground foraging.

Apply predator, grazing and fire management measures required for the local vegetation community and approval conditions. The supplied documents do not define species-specific fire intervals or predator-control rates.

Rehabilitation actions: Monitoring and success measures

Inspect rehabilitation for establishment of locally native grasses, shrubs and trees, retained open feeding areas, connected habitat and safe water access.

Use repeat visual and call surveys to check whether Diamond Doves return to rehabilitated or retained habitat. Record birds, pairs or groups, feeding, nesting and movement between habitat and water.

Set measurable completion criteria in the rehabilitation plan, including vegetation establishment, weed control, protection of retained habitat and functioning water access. The supplied documents do not provide a species-specific density or occupancy target.

Repair erosion, failed plantings, damaged fencing or blocked water access when inspections identify a problem.

Sources