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Barn Swallow (Hirundo rustica)

The Barn Swallow is a small, highly mobile aerial insectivore recorded mainly in northern and eastern Australia, with regular seasonal records around Derby and scattered records elsewhere. It may use open farmland, wetlands and buildings on or near works sites. It is least concern in Australia, but it is a listed migratory species under the EPBC Act, so actions likely to significantly affect it or its habitat may require referral.

Conservation status

Commonwealth, EPBC Act 1999: Listed migratory. Listed under CAMBA, JAMBA and ROKAMBA. Listed migratory species are a matter of national environmental significance, so a significant impact needs referral.

Queensland, Nature Conservation Act 1992: Special least concern. A least concern bird covered by an international migratory bird agreement. Tampering with its breeding place needs a high risk species management program.

Western Australia, Biodiversity Conservation Act 2016: Specially protected (migratory).

Migration and breeding season

The Barn Swallow is a migratory visitor to Australia, mainly recorded in northern Australia from late spring to early autumn. Timing varies between regions and years, but records from northern Western Australia support arrival in November and departure in March to early April.

Breeding mode: Breeds in pairs or small colonies, usually using open buildings and other structures.

Nest: An open cup made from mud and grass, attached to buildings, bridges, culverts, cliffs, caves or other structures.

Clutch size: 3 to 5 eggs.

Incubation: Not recorded.

Young leave nest: Approximately 2 to 3 weeks after hatching.

Breeding frequency: Not recorded.

Age at maturity: Not recorded.

Seasonal timing can shift between years and regions, so treat October to April as the broad risk period and confirm presence, roosting and any active nests before clearing or construction.

  • Breeding overseas, mainly Northern Hemisphere: This broad April to August pattern is a planning guide for overseas breeding areas rather than an Australia specific breeding calendar.
  • Southward arrival in Australia: Arrival may begin in October, with early November supported by regular records from Derby in Western Australia.
  • Non-breeding presence in Australia: The main Australian presence is in northern areas from November to March, with some birds remaining into early April.
  • Northward departure from Australia: Departure generally occurs from March to early April, although passage and late records can extend the season.
  • Foraging and roosting activity in Australia: During the Australian season, expect aerial feeding over open country and water, with larger concentrations possible at wetlands, reedbeds and moist agricultural areas.
  • Highest clearing risk: In Australia, the highest risk is from October to April because works may affect concentrated migrants, roosts or any active nests, with local breeding timing requiring site checks.

Identification: Appearance and size

The Barn Swallow is a slender swallow with glossy blue black upperparts, a rich chestnut forehead and throat, and a deeply forked tail. It is usually seen in flight, often hunting low over open ground or water.

Adults have glossy blue black upperparts, creamy white to pinkish white underparts, and a rich reddish chestnut forehead and throat. A blue black breast band separates the throat from the belly.

The tail is long and deeply forked. White spots on the inner webs of the tail feathers are visible when the bird turns in flight. The wings are long and pointed, and the legs are short and black.

Adults are generally 14 to 19 cm long. Long tail streamers may be missing during moult or on the non breeding grounds.

  • Juveniles are duller and browner than adults.
  • Juveniles have paler chestnut areas, a browner or greyish breast band, and shorter tail streamers.
  • The species is slender and drop shaped, with highly manoeuvrable flight.

Identification: Calls and similar species

The usual call is a repeated short 'tsink' or 'tswit'. The song is a pleasant twittering and warbling series, often longer when the bird is perched.

The main field comparison in Australia is the Welcome Swallow. A Barn Swallow usually shows a richer chestnut forehead and throat, a narrower blue black breast band, glossy blue black upperparts, and a more deeply forked tail with white tail spots.

  • Check the bird when perched where possible.
  • Do not rely on tail length alone, as moulting adults and juveniles can have short streamers.
  • Record photographs, call details and the direction of movement when identification is uncertain.

Identification: Field signs

Barn Swallows spend most of the day in the air. Droppings, mud nests and whitewash below ledges, eaves or rafters are the most useful signs at a work site.

Nests are open mud cups lined with grass. Nests and droppings may occur on buildings, bridges, culverts, sheds, ledges, cliff faces and other structures.

  • Look for mud pellets or mud smears around a nest attachment point.
  • Look for accumulated droppings below roosting or nesting ledges.
  • Listen for repeated 'tsink' or 'tswit' calls around buildings and open water.
  • A lack of long tail streamers does not rule out the species.

Distribution: Australian range

In Australia, the Barn Swallow is an uncommon and unevenly distributed visitor, with records concentrated in the north and scattered records farther south. The species is more widespread overseas and uses Australia mainly as part of its non breeding range.

The species has been mapped in New South Wales, the Northern Territory, Queensland, South Australia and Western Australia. Records include northern coastal Australia, the Darwin region, Derby, north western Australia and scattered sites in Queensland.

Derby is a regular Australian locality. Birds have been recorded there from early November to the end of March, with flocks of up to 300 birds recorded in the historical observations.

  • Western Australia, including the Kimberley and Derby region.
  • Northern Territory, including Darwin, nearby lagoons and other northern sites.
  • Queensland, including scattered coastal and inland localities.
  • New South Wales and South Australia, where records are more scattered.

Distribution: Overseas range

The Barn Swallow occurs across Europe, Asia, Africa and the Americas. Different subspecies use different migration routes.

East Asian breeders, including the form commonly referred to as the Eastern Barn Swallow, winter across tropical Asia from India and Sri Lanka to Indonesia and New Guinea. Increasing numbers are reported to winter in Australia.

  • Northern Hemisphere breeding areas extend from Europe and northern Asia to Japan, Korea and parts of the Himalayas.
  • Non breeding areas include tropical Asia, Africa, Central and South America, and northern Australia.
  • Northern Australia forms the southern part of the species' East Asian non breeding range.

Habitat: Landscape setting

On works sites, look for Barn Swallows in open country with low vegetation and nearby water. They generally avoid dense forest, steep rocky terrain and heavily built up areas, although buildings and other structures can provide nesting sites.

Preferred settings include pasture, meadows, farmland, grassed drainage areas, wetland margins and open rural land. The species often occurs near rivers, lagoons, dams, irrigation areas and other shallow water.

The most suitable sites combine open airspace for feeding, a source of mud, and structures with sheltered ledges or vertical faces.

  • Open paddocks and grassed construction areas.
  • Wetland edges, drainage channels, lagoons and river margins.
  • Farmyards, sheds, bridges, culverts and other rural structures.
  • Open coastal or estuarine areas with low vegetation.

Habitat: Site features to inspect

Before clearing or demolition, inspect the underside of eaves, bridge decks, rafters, ledges, light fittings, culverts, sheds and other sheltered structures.

Also check nearby mud sources. Wet soil, dam edges, drains and muddy vehicle tracks may support nest construction even where no nest is present.

  • Open airspace above grass, water or bare ground.
  • Sheltered horizontal ledges and vertical faces.
  • Mud close to buildings or structures.
  • Reedbeds, tall grass and wetland edges that may be used for roosting.

Foraging habitat: Foraging areas

Barn Swallows catch flying insects in the air. They usually forage over open vegetation or shallow water and may follow livestock, people, vehicles or machinery where these disturb insects.

Typical feeding areas include paddocks, pasture, crops, wetland margins, farmyards, open drains, river edges and cleared construction areas. Birds may feed about 7 to 8 m above shallow water or the ground, but height varies with wind, insect activity and local conditions.

They may skim low over water to drink and can take insects close to the water surface, plants, walls or disturbed soil.

  • Short grass and pasture.
  • Wetland edges, lagoons, dams and slow moving water.
  • Open agricultural land and recently disturbed ground.
  • Road verges, cleared corridors and areas around livestock or machinery.

Foraging habitat: Food and activity patterns

The diet consists mainly of flying insects. Large flies and aphids are recorded food items, while flying ants and other flying insects can be important outside the breeding range.

Barn Swallows may form feeding flocks where insects are abundant. They often gather in wetlands or other productive areas before and during migration.

  • Survey during daylight when birds are actively feeding.
  • Record the height, direction and concentration of feeding birds.
  • Map nearby wetlands, livestock areas, insect rich grassland and open water.
  • Treat repeated low flights over a work area as evidence of regular foraging use.

Breeding habitat: Nest locations

Barn Swallows build mud nests on structures and, less often, on natural rock features. Breeding in Australia is poorly documented, so any nest or dependent young found on a site should be treated as significant until checked by a suitably qualified ecologist.

Nests are open cups made from mud and grass. They are attached to buildings, sheds, bridges, culverts, rafters, ledges, cliffs, caves and other structures that provide shelter from rain.

Look above doors and windows, under eaves, beneath bridge decks, inside open sheds, and on beams or ledges. Old nests may be repaired and reused.

  • Buildings and farm outbuildings.
  • Bridges, culverts and other transport infrastructure.
  • Eaves, rafters, ledges and sheltered light fittings.
  • Cliff faces, caves and other protected natural surfaces.

Breeding habitat: Breeding timing and signs

Egg laying is recorded between August and February. Young leave the nest about 2 to 3 weeks after hatching.

Breeding timing may differ between regions and populations. In northern Australia, do not assume that a site is inactive solely because it is outside the usual breeding months.

  • Adults carrying mud, grass or food.
  • Fresh mud on a nest or repeated visits to a ledge.
  • Chicks calling from inside a nest.
  • Recently fledged birds perched near the nest and being fed by adults.

Breeding habitat: Work site response

If an active nest is found, stop work that could damage the nest or cause direct disturbance. Arrange an ecological assessment before removing structures, closing access or modifying the nesting area.

In Queensland, the Barn Swallow is a special least concern animal because it is a least concern bird covered by international migratory bird agreements. Tampering with its breeding place requires a high risk species management program.

  • Keep plant and machinery away from active nests.
  • Avoid blocking adult access to a nest.
  • Do not remove nests or install exclusion netting while birds are present.
  • Confirm state and Commonwealth approval requirements before work resumes.

Sheltering habitat: Roosting features

Barn Swallows may roost in reedbeds, tall grass, wetlands and other places with abundant flying insects. Buildings and structures can also be used for roosting, particularly where they offer sheltered ledges and access to food nearby.

Inspect reedbeds, tall grass, wetland margins, drains and dense grass beside open water. Large groups may gather at dusk, especially during migration or before departure from a region.

The species can also roost on buildings and other structures. Droppings below rafters, ledges or beams may indicate repeated use.

  • Tall grass and reedbeds near wetlands.
  • Sheltered rafters, eaves, bridge structures and sheds.
  • River edges, lagoons and moist agricultural land.
  • Sites with abundant insects and low disturbance after dark.

Sheltering habitat: Survey and disturbance

Check likely roosts around sunset and shortly after, when birds settle. Watch from a distance and avoid walking through reedbeds or tall grass before the roost has been assessed.

A roost may be temporary or may be used repeatedly during passage. Absence on one evening does not confirm that a site is unused.

  • Record the number of birds, roost location and time of entry.
  • Map access tracks, proposed clearing and lighting near the roost.
  • Avoid night works, bright lighting and sudden disturbance near active roosts.
  • Use non tangled exclusion materials only after an ecological assessment.

Migration and seasonal presence: Seasonal presence in Australia

The Barn Swallow is strongly migratory, and Australian records are linked mainly to the non breeding season of birds moving through or wintering in the region. Seasonal timing varies between populations, so local records and repeated surveys are more reliable than a single assumed arrival date.

Northern Australia is part of the species' wintering range. East Asian breeders move south through tropical Asia to Indonesia, New Guinea and Australia, and increasing numbers are reported to winter in Australia.

At Derby, birds are regarded as regular visitors from early November to the end of March. Other Australian records include January to March observations in Queensland and October to December records in the Northern Territory.

  • Arrival in northern Australia may begin from October to November.
  • Presence is often greatest during the Australian summer and early autumn.
  • Departure from Derby is generally around the end of March or early April.
  • October to November and March to April may include passage or staging birds.

Migration and seasonal presence: Breeding and non breeding range

The main breeding range is in the Northern Hemisphere, including Europe, northern Asia, Japan and Korea. The species also breeds in some temperate parts of the Southern Hemisphere, but Australian breeding information is limited.

Australian birds are generally considered migrants or non breeding visitors. The possibility of local breeding should be checked wherever adults are carrying mud or food, or where nests and dependent young are present.

  • Breeding areas include Japan, Korea, parts of Asia and Europe.
  • Non breeding areas for East Asian birds extend through tropical Asia to northern Australia.
  • Birds may pass through Australia while moving between breeding and non breeding areas.
  • Do not assume that every Australian record represents a resident population.

Migration and seasonal presence: Important habitat in Australia

Important habitat includes places used for feeding, staging, roosting, sheltering and, where applicable, breeding. A site can be important even when birds do not remain there all day.

For project assessment, give particular attention to wetlands and reedbeds, open grassland near water, insect rich agricultural land, mud sources, and buildings or structures with nests or communal roosts.

  • Regular feeding areas with repeated use by multiple birds.
  • Wetlands, reedbeds and tall grass used for night roosts.
  • Open water and muddy margins used for drinking, feeding or nest building.
  • Structures supporting active nests, repeated roosting or staging flocks.
  • Connected open habitat that allows safe movement between feeding and roosting areas.

Migration and seasonal presence: Migration and approvals

The Barn Swallow is listed as migratory under the EPBC Act through CAMBA, JAMBA and ROKAMBA. Listed migratory species are a matter of national environmental significance.

A proposed action that is likely to have a significant impact on the species or important habitat may need referral under the EPBC Act. Seek project specific advice where clearing, construction, lighting or disturbance affects regular feeding, roosting or breeding areas.

  • Record dates, numbers, behaviour and habitat use during each survey.
  • Map regular roosts, nest sites, wetland edges and flight corridors.
  • Consider both direct habitat loss and disturbance during migration.
  • Check Queensland species management requirements where breeding places may be affected.

Threats: Direct clearing and demolition

The Barn Swallow is listed as least concern in Australia, but local works can still injure birds, destroy nests or reduce feeding and roosting habitat. Most risks can be reduced through early inspection, careful timing and practical site controls.

Clearing open habitat near wetlands can remove feeding areas. Demolition or modification of sheds, bridges, culverts and eaves can destroy nests or roosts.

Inspect structures before works begin, including areas that appear unused or partially enclosed. Check for adults entering and leaving, fresh mud, droppings and recently fledged young.

  • Avoid destroying active nests.
  • Retain nearby wetland edges, reedbeds, tall grass and muddy margins where practicable.
  • Stage demolition so an ecologist can confirm that nests and dependent young are absent.
  • Recheck structures after breaks in work or changes in the work footprint.

Threats: Disturbance, lighting and noise

Night lighting can attract insects and change feeding behaviour around roosts. Night works, machinery, vibration and repeated access can disturb birds using buildings, reedbeds or wetland margins.

Avoid directing lights into roosts, nest entrances or wetland edges. Use the lowest practical light levels and shield lights away from habitat.

  • Limit night works near active roosts.
  • Keep people and machinery away from nest entrances.
  • Maintain quiet access around reedbeds and tall grass during dusk surveys.
  • Schedule high disturbance works outside periods of confirmed nesting where practicable.

Threats: Exclusion and entanglement

Exclusion can be effective when installed before birds establish a nest or roost. Thin, flexible netting can trap and injure swallows and should not be used.

Use rigid mesh, poultry wire or other suitable barriers only after confirming that no birds, nests or dependent young are enclosed. Seal gaps carefully so birds are not trapped inside.

  • Prefer rigid mesh or poultry wire with a mesh size of about 2 cm where appropriate.
  • Close building access before birds settle for the night only where this will not trap birds inside.
  • Remove or cover food, water and other features that attract birds to unsafe work areas.
  • Inspect exclusion barriers regularly for trapped or injured wildlife.

Threats: Loss of insect and wetland resources

Drainage, removal of wetland vegetation, pesticide use and loss of open grassland can reduce flying insect supplies. These changes may affect feeding and staging habitat even when no nest is present.

Retaining water edges, open flight space and insect rich vegetation can help maintain habitat around a work site.

  • Avoid unnecessary drainage of shallow wetlands and muddy margins.
  • Retain open grassed areas near water where they are compatible with the project.
  • Minimise broad spectrum insecticide use near feeding and roosting areas.
  • Protect connected habitat between wetlands, paddocks, structures and known roosts.

Survey methodology: 1. Desktop assessment

Barn Swallows are uncommon and locally unpredictable in Australia. Survey open areas near water, buildings, bridges, culverts and other structures, with extra attention during migration and the local breeding period.

Review records for Barn Swallow and other migratory birds within and near the project area. Map open pasture, farmland, wetlands, reedbeds, shallow water, mud sources, buildings, bridges, culverts, cliff faces and sheltered ledges.

Treat northern Australian sites as potential wintering or passage habitat. In Derby, regular records extend from early November to the end of March. East Asian birds are increasingly recorded in Australia, but local arrival and departure dates vary.

Identify buildings and structures that could support mud nests, daytime feeding, night roosts or communal roosts in tall grass and wetlands.

Australian seasonal pattern: Barn Swallows are mainly recorded as migratory visitors or wintering birds in northern Australia. Local passage and breeding timing is poorly documented.

Potential breeding period: Egg laying has been recorded between August and February. Confirm the local pattern before setting work dates.

  • Check recent records and consult local bird groups, landholders and relevant government databases.
  • Review aerial imagery for open water, wetland margins, pasture, farmland, reedbeds and suitable structures.
  • Record whether the site lies in Queensland and whether the species is likely to be a special least concern animal under Queensland law.

Survey methodology: 2. Daytime activity survey

Survey in daylight when flying insects are active. Focus on open areas over shallow water, grassland, pasture, farmland and wetland edges. Watch for low, agile flight, repeated feeding circuits and birds using wires, roof ridges or bare branches.

Survey buildings, bridges, culverts, sheds, verandahs, wharfs and other structures for mud cup nests. Inspect sheltered ledges, beams, posts, light fixtures and areas beneath eaves without touching nests.

Identification: Look for glossy blue black upperparts, a rich chestnut forehead and throat, a narrow or incomplete dark breast band, pale underparts and a deeply forked tail with white spots on the tail feathers.

  • Use vantage points that cover the airspace above likely feeding habitat and the faces of structures.
  • Survey in calm or light wind and reasonable visibility. Avoid relying on observations during heavy rain, strong wind or poor light.
  • Allow enough time to observe repeated use of the site. A single brief visit should not be used to conclude that the species is absent.
  • Record adults, juveniles, pairs, nest building, birds carrying mud or grass, feeding flocks and birds entering or leaving structures.

Survey methodology: 3. Roost and passage survey

Check wetlands, reedbeds, tall grass, river edges and moist agricultural areas near dusk. Barn Swallows may gather in large roosts before or during migration, although Australian roost sites are poorly documented.

Repeat observations across suitable weather and tidal or water conditions where relevant. Passage birds may be present for short periods and can be missed by a single visit.

Seasonal survey window: Include the local migration or wintering period. In northern Australia, plan for possible use during the cooler and drier part of the year, and check local records rather than relying on a fixed national calendar.

  • Begin observations before sunset and continue until birds settle or leave the area.
  • Search the surrounding airspace and likely roost vegetation, not just the project footprint.
  • Record the direction of travel, estimated number of birds, flight height, roost location, arrival and departure time, weather and nearby insect concentrations.
  • Map the roost and identify access routes, lighting, machinery and other potential disturbance sources.

Survey methodology: 4. Survey records and assessment

Use photographs, sound recordings and mapped observations where this can be done without disturbing birds. Record negative results as well as detections, including the conditions and effort used.

Assess habitat function, not just the number of birds. A site may support feeding, roosting, passage or breeding at different times.

Australian knowledge gap: The species is poorly known in Australia compared with resident swallows. Use repeated, targeted surveys and a precautionary approach where suitable habitat or migratory behaviour is present.

  • Record date, start and finish time, observers, weather, visibility, survey route, observation points and survey conditions.
  • Map nests, occupied structures, roosts, feeding areas, water, mud sources and likely flight paths.
  • Record whether birds are adults or juveniles and whether behaviour suggests breeding, staging, roosting or passage.
  • State the confidence of the conclusion and identify gaps that require another survey.

Before habitat disturbance: 1. Avoidance and approvals

Plan works to avoid active nests, breeding places, roosts and repeatedly used feeding or passage areas. Confirm approvals early, because Barn Swallows are listed migratory species under the EPBC Act and are protected under relevant state and territory laws.

Screen the action under the EPBC Act where the project may have a significant impact on Barn Swallows or other listed migratory species. Seek advice and make a referral where required.

Obtain all relevant state or territory permits before handling birds, removing nests, disturbing breeding places or undertaking other regulated fauna work. Permit requirements vary between jurisdictions.

In Queensland, treat the Barn Swallow as a special least concern animal because it is a least concern bird covered by JAMBA, CAMBA, ROKAMBA or the Bonn Convention. Obtain a high risk species management program before tampering with a breeding place.

EPBC status: Barn Swallows are listed migratory species under the EPBC Act through CAMBA, JAMBA and ROKAMBA.

  • Use the project environmental approval and fauna management plan to define the approved work area and controls.
  • Do not assume that least concern status removes legal protection.
  • Confirm whether nest removal, exclusion, relocation, salvage or temporary possession requires a specific authority.
  • Keep copies of approvals, conditions and contact details at the work front.

Before habitat disturbance: 2. Pre-clearance survey and timing

Complete a current pre-clearance survey immediately before works, with timing suited to the habitat and the proposed disturbance. Recheck structures if works are delayed or the work area changes.

Avoid works near active nests, colonies and roosts during the period of use. Where timing cannot avoid use, obtain approval and implement a site-specific management plan.

Australian seasonal timing is variable. Include the northern Australian wintering period, local passage periods and the potential August to February breeding period when setting survey and work dates.

Nest type: The nest is an open mud and grass cup attached to buildings, other structures, cliffs or caves.

  • Inspect all buildings, bridges, culverts, eaves, ledges, cliffs, wetlands, reedbeds and tall grass within the disturbance area and nearby influence area.
  • Look for fresh mud, nest repair, adults carrying material, adults feeding young, repeated entry to a structure and concentrated dusk activity.
  • Use a suitably qualified ecologist to define any site-specific buffer. Do not apply an arbitrary buffer without considering flight paths, noise, lighting and the type of work.
  • Delay works if an active breeding place or significant roost is found until the ecologist and approval authority confirm the controls.

Before habitat disturbance: 3. Exclusion and site controls

Use exclusion only when it is lawful, humane and planned before birds establish a nest or roost. Exclusion must not trap birds inside a building or block access to an active nest.

Protect feeding and roosting habitat by retaining open water, wetland edges, pasture, farmland, reedbeds and tall grass where these areas are part of the site function.

Structural design: Smooth materials, concave eaves and overhangs of 20 cm or less can reduce nesting suitability at buildings, but these measures must not be used to exclude birds from an active nest.

  • Close building access points before birds settle for the night only where an ecologist confirms that no birds are inside. At roost sites, doors may be closed one hour before sunset and reopened one hour after sunset as a practical control.
  • Block gaps in walls and roofs and use robust mesh or poultry wire with approximately 2 cm mesh where approved. Do not use thin, flexible netting that can entangle swallows.
  • Remove food, water or lighting attractants only where this will not damage habitat or create other fauna impacts.
  • Do not remove an active nest, eggs or young unless specifically authorised and directed by the relevant permit or management program.

Before habitat disturbance: 4. Induction and work controls

Brief all workers, subcontractors and machinery operators before entering the work area. Show the location of nests, roosts, exclusion zones, access routes and the stop-work contact.

Nominate a fauna spotter catcher or suitably authorised ecologist with clear authority to stop work. Confirm the escalation process before clearing or demolition starts.

  • Explain the species identification features and the difference between Barn Swallows and Welcome Swallows.
  • Instruct workers not to touch birds, nests, eggs or young and not to enter marked exclusion areas.
  • Provide a simple procedure for reporting a bird, nest, roost, injured animal or unexpected concentration of swallows.
  • Display approval conditions and emergency fauna contacts at the site office and work front.

During habitat disturbance: 1. Sequential clearing

Use a staged approach and keep a trained fauna professional involved while habitat, structures and vegetation are disturbed. Stop work whenever an active breeding place, roost, colony or injured animal is found.

Clear in stages from the least suitable habitat toward retained habitat, leaving escape routes and avoiding sudden isolation of wetlands, reedbeds, open feeding areas and roost vegetation.

Remove temporary materials, stockpiles and structures in a sequence that does not trap birds or block their access to retained habitat.

  • Inspect each structure and work area immediately before disturbance.
  • Use low speed and low noise methods near occupied structures where practicable.
  • Start with non habitat areas and retain suitable open feeding and roosting areas until the final stage.
  • Stop work if birds repeatedly enter a structure, mob machinery, carry nesting material or show other breeding behaviour.

During habitat disturbance: 2. Fauna spotter catcher authority

The fauna spotter catcher or authorised ecologist must have authority to stop work without waiting for supervisor approval. The stop-work instruction remains in place until the animal, nest or roost has been assessed and the approved response is confirmed.

Only authorised people may handle, restrain, transport or temporarily house a Barn Swallow.

  • Mark the location and establish a temporary exclusion area.
  • Identify whether the observation involves a feeding bird, active nest, colony, roost, egg, chick or injured adult.
  • Contact the project ecologist and approval holder before changing the exclusion area or resuming work.
  • Record the decision, person who made it, controls applied and time work restarted.

During habitat disturbance: 3. Active breeding place, colony or roost

Treat a nest with eggs or young, repeated nest attendance, a colony or a regularly used roost as an active fauna feature. Do not demolish, dislodge, net over or relocate it without the required approval and specialist direction.

Where practical, retain the structure and establish a site-specific buffer that addresses vibration, noise, dust, lighting, access and the risk of direct contact.

  • Stop work and notify the project ecologist and relevant approval contact.
  • Prevent machinery, workers and materials from entering the exclusion area.
  • Do not use smoke, chemicals, sticky substances, sound deterrents or improvised barriers.
  • If lawful exclusion is required, undertake it outside the active use period and confirm that no birds, eggs or young are trapped inside.
  • Maintain access to nearby feeding, drinking and roosting habitat.

During habitat disturbance: 4. Injured or displaced animal pathway

Do not chase or catch a healthy flying bird. If a Barn Swallow is grounded, injured, trapped or unable to fly, stop nearby work and keep people, vehicles and dogs away.

Use the project fauna protocol and contact a veterinarian, wildlife carer or licensed wildlife rehabilitator. The response must follow the relevant state or territory authority.

  • Keep the bird in a quiet, dark, ventilated container only if directed by an authorised person.
  • Do not give food or water unless instructed by a wildlife professional.
  • Record the exact location, condition, photographs, time, suspected cause and person who handled the bird.
  • Release a rehabilitated bird only when the authorised wildlife professional confirms that release is lawful and suitable.

During habitat disturbance: 5. Daily records

Maintain a fauna register throughout clearing and construction. Good records support compliance, adaptive management and later review of seasonal use.

Record observations even when no animal is captured or moved.

  • Record date, time, weather, work area, species, number of birds, behaviour and habitat used.
  • Record all nests, roosts, colonies, stop-work events, injuries, mortalities, handling, transport, releases and permit references.
  • Record the name and authority of each person who assessed or handled an animal.
  • Attach maps and photographs that show the feature before, during and after work.

After habitat disturbance: 1. Post-clearance checks

Check the work area after each disturbance stage and confirm that controls have worked before releasing the site to normal construction. Review all incidents promptly and report them through the approval and project environmental systems.

Inspect the cleared area, retained structures and nearby habitat after each work stage. Look for trapped, injured or displaced birds, damaged nests, eggs, young and new roosting activity.

Repeat checks after demolition, roof removal, bridge work, major lighting changes and any event that alters access to buildings or wetlands.

  • Check cavities, ledges, eaves, culverts, scaffolding, temporary buildings and enclosed work areas.
  • Check nearby wetlands, reedbeds and tall grass for displaced or concentrated birds.
  • Remove hazards such as open tanks, loose netting, uncovered pits and unsecured doors.
  • Do not declare the area clear until the ecologist confirms that the approved controls are complete.

After habitat disturbance: 2. Reporting and compliance

Prepare a short completion report that links observations and controls to the approval conditions. Report any death, injury, nest disturbance, unapproved handling or unexpected colony or roost through the required authority pathway.

Keep records with the project environmental file and provide them to the approval holder, principal contractor and relevant regulator when required.

  • Summarise survey effort, detections, habitat affected, avoidance measures, stop-work events and outcomes.
  • Attach maps, photographs, fauna register entries, permit details and rehabilitation commitments.
  • Report EPBC matters and Queensland species management program matters in accordance with their conditions.
  • Record any outstanding risk and nominate an owner and completion date.

After habitat disturbance: 3. Relocated and rehabilitated animals

Track every animal that is handled, transported or released. The project ecologist should confirm the release location, timing and method with the authorised wildlife professional.

Do not relocate a nest or colony as a routine measure. Relocation should occur only where specifically authorised and where a qualified specialist considers it feasible.

  • Record the animal identification, condition, holding time, transport details, release site and release outcome.
  • Check the release area for open feeding habitat, water, shelter and freedom from immediate construction hazards.
  • Monitor the release area for short term survival or reappearance where required by the approval or wildlife professional.
  • Notify the project manager if an animal cannot be released or if further intervention is recommended.

After habitat disturbance: 4. Incident review

Review incidents with the spotter catcher, ecologist, supervisor and crew involved. Focus on what allowed the incident to occur and what should change before the next work stage.

Update the induction, maps, exclusion controls and work sequence where the review identifies a gap.

  • Investigate missed nests, trapped birds, lighting impacts, uncontrolled access and failures of netting or doors.
  • Check whether survey timing or effort was suitable for the seasonal conditions.
  • Use lessons from the incident to update the fauna management plan and method statements.
  • Close the incident only after corrective actions are verified in the field.

Rehabilitation actions: 1. Restore feeding and passage habitat

Rehabilitation should restore the habitat functions used by Barn Swallows, especially open airspace with flying insects, nearby water, mud sources and safe structures. Use local evidence before installing artificial features, because Australian use of replacement structures is poorly documented.

Reinstate open areas with low vegetation near water where these habitats were removed or compacted. Retain safe flight paths between feeding areas, wetlands and structures.

Avoid creating dense forest, tall built barriers or heavily lit spaces across open flight areas.

  • Restore wetland margins, pasture, grassland and farmland edges where they formed part of the site.
  • Remove construction spoil, excess fill and barriers that obstruct shallow water or open airspace.
  • Control erosion and sediment so water and mud sources remain available without creating unsafe pits or polluted pools.
  • Use local native plants suited to the site and avoid planting that closes open feeding areas.

Rehabilitation actions: 2. Nesting structures

Barn Swallows can attach open mud nests to buildings and other structures. Replacement habitat should therefore focus on sheltered ledges, beams or open cup platforms under an overhang, where local planning and approvals support their use.

Standard enclosed nest boxes are not a default replacement for this species. Bat boxes are also not suitable as Barn Swallow nest replacements.

Suitable nest form: An open cup of mud and grass attached to a sheltered surface is more consistent with Barn Swallow requirements than an enclosed box.

  • Retain sound existing ledges, eaves, bridge structures, culverts and sheltered faces where they do not create a safety or hygiene conflict.
  • Consider artificial nest ledges or open nest platforms only after consultation with an ecologist and the asset owner.
  • Provide nearby mud and water sources without creating contaminated or hazardous areas.
  • Do not install an artificial nest site during the active breeding period if installation would disturb birds.
  • Inspect any replacement structure for safe attachment, clearance from machinery and the risk of entanglement.

Rehabilitation actions: 3. Roost and shelter habitat

Retain or restore reedbeds, tall grass, wetland margins and other sheltered vegetation used for night roosting. Australian roost locations are poorly documented, so monitor before removing vegetation or changing access.

Avoid treating every reedbed as a Barn Swallow roost, but protect it where surveys show repeated use or where it forms part of a broader migratory wetland.

  • Maintain a mosaic of open water, wetland edge, reedbed and taller vegetation.
  • Stage vegetation management outside confirmed roost use where practicable.
  • Keep temporary fencing, erosion controls and exclusion mesh from creating entanglement hazards.
  • Design roost structures only where a site assessment shows a real need and a qualified ecologist can define the appropriate form and location.

Rehabilitation actions: 4. Weeds, water and insects

Manage weeds without removing all vegetation around wetlands or eliminating insect habitat. Barn Swallows feed on flying insects and may use water and mud sources near feeding areas.

Use chemical controls carefully and follow the label, approval conditions and fauna protection requirements.

  • Prioritise weeds that reduce open water, smother wetland edges or create unsafe access conditions.
  • Retain varied vegetation structure, including suitable reedbeds and tall grass where these are used for roosting.
  • Prevent pesticide drift and avoid broad insecticide use near known feeding, roosting or breeding areas.
  • Keep clean shallow water and exposed mud available where these features are part of the approved rehabilitation design.
  • Remove standing water that creates a construction hazard only after providing safe habitat alternatives where required by the management plan.

Rehabilitation actions: 5. Lighting and long term monitoring

Use lighting that limits disturbance to roosts, nests and feeding areas. Monitor the rehabilitated site across the seasons so management reflects actual use rather than assumptions.

Keep monitoring practical and linked to project risks, approval conditions and the expected migration period.

  • Direct lights away from wetlands, reedbeds, nest structures and open flight paths.
  • Use the lowest effective light level, timers and shielding where safety allows.
  • Survey for feeding, nesting, passage and roosting during the relevant local seasons, including the northern Australian wintering period and any documented passage period.
  • Record use of restored habitat, nest structures, roosts, injuries and new hazards.
  • Review monitoring results with the ecologist and adjust weeds, water, lighting, access or structures when the site is not functioning as intended.

Sources