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Kelp Gull (Larus dominicanus)

The Kelp Gull is a large, black-backed coastal gull that is now established across much of southern Australia, with especially strong numbers in Tasmania. Breeding colonies can contain hundreds of pairs, so clearing, construction, access and disturbance near islands, shorelines and estuaries can affect many birds at once. It is least concern in Australia, but Queensland breeding places of this colonial breeder receive additional protection and may require a high risk species management program before tampering occurs.

Conservation status

Queensland, Nature Conservation Act 1992: Colonial breeder. Least concern in Queensland, but it breeds in colonies, so tampering with a breeding place needs a high risk species management program rather than the low risk program.

Breeding season

Kelp Gulls breed in Australia mainly from November to March, with timing likely to vary between colonies and regions. They are resident in many parts of Australia, although some southern populations disperse north after breeding.

Breeding mode: Breeds as pairs, in loose colonies or in scattered single pairs. Both adults build the nest, incubate the eggs, brood the young and feed them.

Clutch and incubation: Usually 1 to 3 eggs. Incubation is 23 to 30 days.

Fledging: Fledging is reported at 45 to 61 days in subantarctic populations and 61 to 73 days in the Australian species account. Parents may continue feeding young after fledging.

Maturity: Maturity is reached at about 3 to 4 years.

Breeding places and colony size: Ground nests occur on beaches, offshore islands and islets, rocks, grassy headlands, ledges, low vegetation and mounds. Colonies may contain a few pairs to several hundred pairs. Recorded Australian colonies have included about 280 to 300 nests and 20 to 30 pairs.

Colonies and active breeding places: A colony may appear as dispersed ground nests among vegetation and rocks, or as nests spread across an island, salt flat, beach or rocky site. Kelp Gulls show high fidelity to breeding areas. Active signs include nests, eggs, small chicks, alarm calls and adults returning to nests. They are not known to use maternity roosts, hollows, caves or burrows. Disturbed birds may rise, circle the colony and settle again, flushing other birds nearby. Keep works outside the nesting period where possible. No species specific disturbance distance is established, so set buffers from observed flushing behaviour, site conditions and approval requirements.

Breeding timing, colony occupancy and flooding exposure can vary between years and regions, so inspect likely breeding places before works and reassess if birds show nesting behaviour.

  • Breeding and nesting: Breeding and nest construction are documented from November to March, with November and December included in the documented breeding period.
  • Eggs and small chicks: Eggs and chicks less than one week old were recorded in a Tasmanian colony during November.
  • Dependent young and fledglings: Dependent young may remain associated with the colony through the breeding period, with fledging taking about 45 to 73 days depending on the account and region.
  • Resident presence and post breeding dispersal: Kelp Gulls are resident in many parts of Australia, while some southern populations disperse north after breeding and movement varies between colonies.
  • Colony and breeding place activity: Island, beach, rock, salt flat and low vegetation colonies require special care because one site can hold many nests and disturbance can flush adults and expose eggs or young.
  • Highest clearing risk: The highest risk is November to March, so plan clearing and construction outside this period and protect any active colony with a site specific buffer based on observed bird responses and regulatory advice.

Identification: Appearance and size

The Kelp Gull is a large gull with a black back and wings, a white head and underparts, and a yellow bill marked with red. Adults and immature birds look quite different, so use several features together when checking birds around a work site.

Adults have a slate-black back and upperwings, a white head, underbody, rump and tail, and small white mirrors near the wingtips. The bill is yellow with a rounded red spot near the tip, and the legs are greenish yellow.

Juveniles are mottled grey-brown, with a dark bill and a dark tail band. The head and underparts become whiter as they mature. Maturity is reached at about three or four years.

Adult field mark: Black upperparts, white head and underparts, yellow bill with a red spot.

Young bird field mark: Mottled brown and grey plumage, dark bill and dark tail band.

  • Length: 54 to 65 cm.
  • Wingspan: about 106 to 142 cm.
  • Weight: about 540 to 1,390 g.
  • Adult tail is all white, without the broad black band seen on a Pacific Gull.

Identification: Calls and similar species

The call is a strident, repeated 'ki-och'. Calls may help locate birds hidden behind vegetation or on the far side of an island, but visual confirmation is preferable.

The main Australian confusion species is the Pacific Gull. Kelp Gulls are usually smaller and less bulky, with a less massive bill and an all-white tail. Their nests are generally lower-walled and messier than Pacific Gull nests.

  • Check the tail pattern before relying on overall colour.
  • Compare bill size and shape where Pacific Gulls are also present.
  • Kelp Gull and Pacific Gull nests may occur close together.

Identification: Field signs

Look for shallow ground nests made from grass, seaweed, sticks, shells, debris or other plant material. Nests may be bowls, loose piles or shallow scrapes, depending on the site.

Other signs include adult birds repeatedly returning to one spot, alarm calls, birds circling above a colony, eggshells, feathers and concentrated droppings on rocks or bare ground. Whitewash may mark regular roosting rocks, ledges, bridge structures or shoreline objects.

A nest can be difficult to see where it is among rocks, low vegetation or tussocks. Avoid entering suspected nesting areas simply to confirm a nest.

  • Repeated alarm calls or circling adults can indicate a nearby nest.
  • Fresh droppings and feathers can indicate a regular perch or roost, but do not by themselves confirm breeding.
  • Treat any ground scrape, bowl or material pile in suitable habitat as a possible nest until checked by an experienced ecologist.

Distribution: Australian range

In Australia, the Kelp Gull is mainly a southern and coastal species, but it can travel inland along waterways and use highly modified sites. Records and breeding populations are strongest in south-eastern Australia and Tasmania.

The species is mapped in New South Wales, Queensland, South Australia, Tasmania, Victoria and Western Australia. It is most frequent along the southern and south-eastern coasts, and is especially common in Tasmania.

It is largely absent from northern Australia. In New South Wales, the first published sightings were from Botany Bay, and breeding has been recorded near Lake Macquarie. In Victoria, South Australia and southern Western Australia, it occurs mainly in coastal and near-coastal areas.

  • Tasmania: widespread in the south-east, including the Derwent River Estuary, Pitt Water and surrounding bays, channels and islands.
  • New South Wales: coastal records and established breeding populations.
  • Victoria, South Australia and Western Australia: mainly southern coastal and estuarine records.
  • Queensland: mapped as present, although it is expected to be a scarce coastal species in comparison with southern states.

Distribution: Regional movements

Many Australian birds remain in the same broad area throughout the year. Other birds are dispersive, and movement varies between colonies. Some southern populations move north after breeding.

High fidelity to breeding areas has been recorded. A colony should therefore be treated as an established site even when few birds are present during a particular inspection.

  • Do not assume that an empty island or shoreline is unused because birds are absent on one visit.
  • Check records from different seasons when planning works near known colonies.
  • Survey nearby islands, rocks, beaches and estuary margins if birds are seen moving from the work area.

Distribution: Overseas range

The Kelp Gull occurs widely through the Southern Hemisphere. Its range includes New Zealand, subantarctic islands, the Antarctic Peninsula, southern Africa and Madagascar, and coastal South America as far north as Ecuador and southern Brazil.

Habitat: Natural habitat

Kelp Gulls use sheltered coastal environments and a wide range of natural and modified landscapes. On works sites, focus on shorelines, islands, exposed rock and open ground near reliable food sources.

Typical habitat includes harbours, bays, inlets, estuaries, beaches, mudflats, rock platforms, rocky shores, lagoons, lakes, rivers, streams and reservoirs.

Breeding and resting areas are often open, with low vegetation, rocks, sand, shell, tussock or bare ground. Offshore islands, rock stacks and sandbanks can be particularly suitable where land predators and people have limited access.

  • Estuary margins and sheltered bays.
  • Sandy or rocky beaches and mudflats.
  • Offshore islands, islets, reefs and rock stacks.
  • Low coastal vegetation, salt marsh and exposed shore platforms.

Habitat: Modified and inland habitat

The species also uses pasture, cultivated land, cleared areas, refuse facilities, fishing harbours, landfill sites and other disturbed landscapes. It may travel along rivers and waterways away from the coast.

A construction site near a food source can attract gulls even when the site itself is not suitable for nesting. Inspect nearby open ground, roofs, stockpiles, drainage basins and shoreline structures.

  • Landfill and waste disposal areas.
  • Fishing harbours and fish-cleaning areas.
  • Pasture, cropland and cleared ground.
  • Reservoirs, rivers, streams and drainage features.

Habitat: Site inspection points

Before clearing or earthworks, walk the edges of islands, shorelines, rock piles, open ground and low vegetation. Look for nests, adults defending territories, repeated flight paths and concentrated droppings.

Use binoculars to inspect islands and inaccessible shorelines. Avoid approaching closely enough to flush birds while carrying out the initial assessment.

  • Map all potential nesting and roosting areas before access tracks, laydown areas or plant movements are set out.
  • Include nearby islands and shoreline sections in the assessment, not only the footprint.
  • Record the date, tide, water level, bird numbers, nest locations and disturbance response.

Foraging habitat: Food and feeding areas

The Kelp Gull is an opportunistic predator and scavenger. It forages on land and in shallow water, often close to breeding and roosting areas, so waste, fish handling and exposed food can increase activity around a work site.

Food includes molluscs, fish, crustaceans, echinoids, carrion, refuse and other birds. The species may pick food from shallow water, take beach-cast material, scavenge around fishing activity or feed at waste facilities.

Kelp Gulls have been recorded taking food from water to about 0.7 m deep. They may also drop molluscs onto rocks to break the shells.

  • Intertidal flats and shallow estuary margins.
  • Beaches, rock platforms and beach-cast wrack.
  • Fishing harbours, fish-cleaning areas and wharves.
  • Landfills, refuse sites, food waste areas and construction waste.

Foraging habitat: Works site risks

Open bins, uncovered food waste, fish waste and discarded materials can attract gulls and increase bird activity near plant and workers. Sudden access to food can also increase local numbers and conflict with nearby shorebirds.

Keep waste contained and remove food scraps each day. Do not feed gulls. Store fish, bait and animal material securely, and prevent access to spoil or waste stockpiles.

  • Use lidded bins and secure waste compounds.
  • Keep food and fish waste away from shorelines and colony approaches.
  • Inspect excavations, tanks and temporary water bodies for trapped or swimming birds.
  • Manage lighting and night works where they attract birds to exposed food or water.

Foraging habitat: Foraging disturbance

Repeated vehicle, vessel, dog or pedestrian activity can displace birds from shallow feeding areas. This may be significant where an estuary or island supports both gulls and migratory shorebirds.

Plan access routes away from feeding and roosting areas where practicable. If birds repeatedly flush, stop and reassess the activity, route and timing.

  • Keep people and vehicles on defined routes.
  • Avoid unnecessary shoreline access during high bird use.
  • Use a fauna spotter catcher or ecologist to assess repeated flushing and adjust controls.

Breeding habitat: Nest locations

Kelp Gulls breed on coasts and islands, usually on the ground. They use open sites with sand, rock, low vegetation or tussock, and may also nest on ledges, mounds and some modified shorelines.

Breeding places include beaches, rocky areas, grassy headlands, ledges, low vegetation, mounds, offshore islets, salt marsh and ground among rocks. Nests may be shallow scrapes, bowls or loose piles of plant material and debris.

In Tasmania, nests have been recorded on islands, salt flats, salt marsh, boulders and at the base of cliffs. The species can nest as scattered pairs or in loose colonies.

  • Open ground on islands and islets.
  • Beaches, sandbanks and rock platforms.
  • Low coastal vegetation, tussocks and salt marsh.
  • Cliff bases, ledges, boulders and rocky mounds.

Breeding habitat: Breeding season and young

The general breeding period is November to March. Eggs may be present from early in the season, followed by small chicks and fledged young. Both adults build the nest, incubate the eggs, brood the young and feed them.

Clutches contain 1 to 3 eggs. Incubation lasts about 23 to 30 days. Fledging takes about 45 to 73 days, depending on the account and location.

Breeding period: November to March.

Clutch: 1 to 3 eggs.

Incubation: About 23 to 30 days.

Fledging: About 45 to 73 days.

  • Allow for eggs, small chicks and mobile but dependent young when scheduling works.
  • Do not assume a site is clear because adults leave when approached.
  • Seek a breeding assessment before disturbing any suspected nest or colony.

Breeding habitat: Recognising an active breeding place

An active breeding place may contain visible nests, eggs or chicks, but some nests are hidden among rocks or vegetation. Adults returning to a particular spot, carrying nesting material, giving alarm calls, circling overhead or defending ground are also useful signs.

Kelp Gulls may rise, circle the colony and settle when disturbed. This response can expose eggs and chicks to cold, heat, flooding or predators, and can disturb other birds using the same shoreline.

  • Fresh nest material or a maintained shallow scrape.
  • Adults sitting low, calling repeatedly or returning to one location.
  • Eggs, small chicks, fledglings or adults escorting young.
  • Multiple birds flushing from the same island, ledge or shoreline section.

Sheltering habitat: Roost locations

Kelp Gulls roost in open coastal and near-coastal places, often close to feeding areas. Separate roosts can be used by many birds even when there is no active breeding colony.

Recorded roosting places include islands, rock stacks, beaches, estuaries, farmland, playing fields, harbours, bays, inlets, lagoons, rivers and reservoirs. Look for open ground, rocks, sandbars, jetties, roofs and other structures with clear views and easy access to water or food.

The species does not use maternity roosts in the mammal sense. It lays ground nests, and adults may gather at communal roosts outside the nest area.

  • High-tide beaches and sandbanks.
  • Exposed island shorelines and rock stacks.
  • Estuary mudflats, spits and open fields.
  • Wharves, roofs, bridges or other elevated structures where birds can rest.

Sheltering habitat: Roost signs and disturbance

Regular roosts may be identified by groups of birds resting together, accumulated droppings and feathers, repeated use of the same rocks or sandbank, and birds moving between the roost and nearby feeding areas.

Approaching a roost can cause a large group to flush. Repeated flushing uses energy and can displace shorebirds from feeding or roosting habitat. Use distant observation and avoid walking through a roost.

  • Count birds from outside the roost where practicable.
  • Keep plant, vehicles, boats, dogs and pedestrians away from the roost approach.
  • Schedule noisy or high-traffic works outside periods of high use where practicable.
  • If birds repeatedly flush, increase distance and seek ecological advice.

Sheltering habitat: Water levels and flooding

Tidal flooding can affect low-lying nests and roosts. At Orielton Lagoon, many nests were recorded flooded or awash at high tide, and some eggs were submerged or covered in mud.

Where works alter drainage, tidal exchange, lagoon levels or flood paths, assess effects on nearby nesting and roosting areas. Keep spoil, bunds and machinery out of natural drainage lines unless the design has been assessed.

  • Check sites across suitable tide and water-level conditions.
  • Record whether nests or roosts are exposed, awash or submerged.
  • Coordinate water management with breeding-season inspections.

Colonies and breeding places: What colonies look like

A Kelp Gull colony is a group of breeding pairs nesting close together, usually on open ground, rocks, low vegetation or an island. Colonies can range from a few pairs to several hundred pairs, so a small-looking site can represent a substantial local breeding population.

Colonies may be spread across an island, salt flat, beach, rocky platform or low coastal vegetation rather than forming a dense patch. Nests can be dispersed, with adults maintaining territories around individual nests.

Recorded examples include about 20 to 30 breeding pairs on Barren Island, about 280 to 300 nests at Orielton Lagoon, and about 300 to 320 breeding pairs in Pitt Water during the 2012 to 2013 breeding season. Kelp Gulls may also nest as solitary pairs.

Typical scale: Solitary pairs, loose colonies, or colonies of up to several hundred pairs.

Recorded Tasmanian examples: About 20 to 30 pairs on Barren Island, and about 280 to 300 nests at Orielton Lagoon.

  • Open ground with shallow bowls, scrapes or loose nest piles.
  • Adults spaced across rocks, sand, low vegetation or tussocks.
  • Repeated alarm flights when people or machinery approach.
  • Nearby communal roosts, feeding areas and flight paths.

Colonies and breeding places: Site fidelity and active colonies

Kelp Gulls show high fidelity to breeding areas. A colony may be used in successive years, even if nest numbers vary or birds are absent during a single visit.

Treat an established island, islet, shoreline or cliff site as potentially active until seasonal checks show otherwise. Confirm activity by looking for nests, eggs, chicks, adults returning to nests, alarm calls and repeated use of the same ground.

  • Review previous records before finalising the construction footprint.
  • Survey during the breeding period, November to March, where works may affect a known site.
  • Use binoculars or a long-lens survey from the colony edge.
  • Do not enter a colony containing eggs or small chicks unless entry is necessary and authorised.

Colonies and breeding places: Buffers and disturbance controls

There is no single published Kelp Gull disturbance distance that suits every site. Set a site-specific buffer around the colony or roost, based on visibility, terrain, noise, machinery, flight response, stage of breeding and the presence of other waterbirds.

Start with the greatest practicable separation and reduce it only when birds remain settled and an appropriately qualified ecologist supports the change. If adults flush, circle, alarm call or fail to settle, stop the activity and increase the buffer.

  • Keep works outside the nesting period where practicable, especially November to March.
  • Fence and sign the buffer before plant, vehicles or people arrive.
  • Keep access routes, stockpiles, lighting and noisy plant outside the buffer.
  • Use a fauna spotter catcher or ecologist to supervise unavoidable works near an active colony.
  • Do not rely on a buffer alone if aircraft, boats, blasting, piling or high-intensity lighting can disturb the colony.

Colonies and breeding places: Queensland breeding-place requirements

In Queensland, the Kelp Gull is a least concern colonial breeder. Tampering with the breeding place of a least concern colonial breeder requires the high risk species management program pathway under the Nature Conservation (Animals) Regulation 2020, rather than the low risk pathway used for other least concern animals.

A colonial breeder is an animal of the same kind that co-exists in close association for breeding. Confirm the approval pathway and any species management program requirements before clearing, construction, access or other activities that could damage or disturb a breeding place.

  • Identify colonies and breeding places early in project planning.
  • Obtain current regulatory advice before works near an active Queensland colony.
  • Keep records of surveys, nest locations, buffers, disturbance responses and controls.
  • Apply the same precautionary approach in other states, even where no specific buffer is prescribed.

Threats: Direct damage to nests and colonies

The Kelp Gull is not listed as endangered, vulnerable or near threatened in Australia, but local colonies and nearby shorebirds can still be affected by works and poor site management. Focus controls on direct nest damage, disturbance, waste, water levels and cumulative loss of breeding or feeding habitat.

Clearing, grading, driving, stockpiling, trenching and storage can crush ground nests, eggs or chicks. Works on islands, salt flats, beaches, rock platforms, low vegetation and open shoreline ground need a breeding-place check before disturbance.

Mark the colony and all access restrictions on site plans. Keep machinery and workers outside the approved buffer, and inspect the work area again if works are delayed into the breeding season.

  • Pre-clearance survey by a suitably qualified person.
  • No vehicle or plant access through an active colony.
  • Fence, sign and communicate exclusion areas to all workers.
  • Stop work if a previously unknown nest or colony is found.

Threats: Human disturbance and flushing

People, vehicles, boats, dogs, aircraft, lighting and noisy construction can cause adults to leave nests or repeatedly circle the colony. At Orielton Lagoon, flushed Kelp Gulls disturbed feeding and roosting migratory shorebirds, including Eastern Curlews and Bar-tailed Godwits.

Use the least intrusive survey method. Keep observers at the colony edge, avoid repeated visits and plan noisy work outside the nesting period where practicable.

  • Use distant observation rather than entering a colony.
  • Keep dogs and recreational access away from breeding and roosting areas.
  • Control night lighting directed toward islands, beaches and estuaries.
  • Monitor bird behaviour during works and modify controls when flushing occurs.

Threats: Waste and artificial food

Food waste, fish waste, landfill and refuse can attract large numbers of gulls and alter local movement patterns. Concentrations around waste facilities can increase interactions with other birds and may encourage birds to use unsafe or unsuitable work areas.

Contain waste and remove food residues from the site. Do not provide food deliberately, and prevent access to bins, carcasses, fish waste and spoil containing edible material.

  • Use secure, lidded waste containers.
  • Remove fish, meat and food waste promptly.
  • Keep waste compounds away from colony and roost approaches where practicable.
  • Include waste controls in contractor inductions and daily inspections.

Threats: Water management and cumulative habitat loss

Tidal flooding and altered water levels can affect low-lying nests and roosts. Drainage changes, bunds, reclamation, shoreline hardening and loss of islands or open shore can reduce breeding, feeding and resting habitat.

Assess temporary and permanent changes to tidal flows, lagoon levels, flood paths and shoreline access. Consider the combined effect of nearby projects, recreational use and waste facilities, not only the immediate construction footprint.

  • Maintain natural drainage and tidal exchange unless changes have been assessed.
  • Keep spoil and sediment out of estuaries, lagoons and shallow feeding areas.
  • Inspect colonies after major tides, flooding or water-level changes.
  • Retain suitable islands, exposed rock, beaches and low coastal vegetation where practicable.

Survey methodology: 1. Desktop assessment

Survey for Kelp Gulls should cover both birds and breeding places. The species is often sedentary, but some southern birds move north after breeding, so survey timing should reflect local conditions and the proposed works.

Review aerial imagery, recent bird records, coastal and estuarine mapping, and previous site surveys before entering the site.

Map islands, sandbanks, beaches, rock platforms, headlands, mudflats, lagoons, estuaries, landfill areas and other open ground that could support feeding, roosting or nesting.

Check whether the site is within or near a wetland, Ramsar site, marine area, protected area or known breeding location. Confirm current Commonwealth, state and local approval requirements.

Breeding period: November to March

Typical colony size: Up to several hundred pairs, although solitary pairs also occur

Usual foraging range: Usually within 10 km of the shore

  • Identify likely flight paths between colonies, roosts and feeding areas.
  • Check for recent records from local naturalists, land managers, councils and bird monitoring programs.
  • Treat small offshore islands and apparently bare rocky areas as potential breeding habitat until checked.

Survey methodology: 2. Field detection survey

Survey all suitable shoreline and island habitat from the perimeter where possible. Avoid entering a colony unless entry is necessary, authorised and safe.

Use binoculars or a telescope to scan open ground, rocks, low vegetation, tussocks, grassy headlands, ledges and shallow scrapes. Kelp Gull nests may be bowls, conical mounds or shallow scrapes made from grass, seaweed, sticks, shells or debris.

Walk foreshore sections slowly and scan from several viewpoints. A dispersed colony may not be visible from one location.

Known Australian breeding places: Coasts, islands, beaches, rocks, grassy headlands, ledges, low vegetation, mounds and rocky ground

Australian colony example: About 280 to 300 nests were recorded in an Orielton Lagoon colony

  • Record adults carrying nesting material, alarm calling, circling, settling repeatedly, defending ground, returning to a nest, eggs, chicks and fledglings.
  • Look for shallow bowls, loose piles of nesting material, droppings, feathers and repeated use of the same ground.
  • Survey islands and isolated rocks from a boat or opposite shore where practical, rather than landing.
  • Do not rely on a single vantage point where vegetation, rocks, tides or terrain hide nests.

Survey methodology: 3. Timing and conditions

Complete the main breeding place survey before clearing or construction. November to March is the highest risk period for active nests and dependent young. In Tasmania, eggs and very young chicks have been recorded during November surveys.

Repeat the survey if works are delayed, water levels change, a colony is forming, or birds show new territorial or nesting behaviour.

Choose calm conditions with good visibility and suitable tides where possible. Avoid unnecessary surveys during strong winds, heavy rain, poor visibility or high water when nests may be obscured.

  • Survey at a time when birds are likely to be present, while avoiding repeated approaches that cause birds to leave nests.
  • Check high tide conditions where colonies occur on salt flats, mudflats or low islands. Record nests that are flooded or awash.
  • Allow extra time for dispersed colonies and for observations from more than one safe viewing position.
  • Use local advice when colonies are near feeding or roosting sites for migratory shorebirds.

Survey methodology: 4. Records and mapping

Record the location and extent of every active breeding place, colony, roost and individual nest found. Mark observations on a site plan and retain photographs that do not require close approach.

Record the survey date, start and finish time, observers, weather, tide or water level, access route, survey area, survey method and visibility.

Describe the birds and breeding evidence clearly. Separate confirmed nests from likely breeding behaviour and general feeding or roosting records.

  • Count adults, nests, eggs, chicks and fledglings where this can be done without disturbance.
  • Record colony dimensions, habitat type, nest density, access points, nearby roads, machinery areas and potential disturbance sources.
  • Record whether birds flush, circle, call, return to nests or remain settled when observers are at the survey position.
  • Record other species using the site, especially migratory shorebirds that may be affected by gull disturbance or kleptoparasitism.

Before habitat disturbance: 1. Avoidance, approvals and permits

Plan works to avoid active breeding places and important roosts. Kelp Gulls breed in loose colonies or as scattered pairs, and a site that looks open or unused can contain ground nests or young birds.

Redesign the work footprint to retain colonies, nests, roosts, access routes and nearby feeding habitat wherever practicable.

Obtain advice on Commonwealth and state requirements before works begin. Kelp Gull is listed as a marine species under the EPBC Act, although it is not listed as a threatened species in Australia.

Consider an EPBC referral where the action may significantly affect a relevant protected matter, including a protected marine area or another listed matter at the site. Seek advice from the Commonwealth regulator when the pathway is unclear.

In Queensland, treat Kelp Gull as a colonial breeder. Tampering with the breeding place of a least concern colonial breeder requires a high risk species management program under the Nature Conservation (Animals) Regulation 2020, rather than the low risk program used for other least concern animals.

  • Confirm whether a Queensland high risk SMP is required before disturbing a breeding place.
  • Obtain any required state or territory wildlife permits, protected area approvals, marine park approvals, vegetation clearing approvals and local government consents.
  • Keep copies of approvals, conditions, maps, permit contacts and stop work requirements at the site.
  • Do not assume that least concern status removes the need for approval or a species management program.

Before habitat disturbance: 2. Timing and buffers

Schedule noisy, ground disturbing and vegetation clearing work outside the local breeding period where possible. For Kelp Gull, avoid November to March unless a suitably qualified ecologist confirms that no active breeding place will be affected.

Use a site specific buffer around each active nest, colony and roost. The buffer must account for the colony size, terrain, line of sight, access route, machinery, noise, lighting, tides and the response of the birds.

Do not use a single generic distance where the colony is dispersed or where birds flush before observers can identify all nests. Increase the buffer if adults repeatedly leave nests, circle the colony or fail to settle.

Breeding period: November to March

Breeding place scale: Colonies may contain up to several hundred pairs, while some birds nest as solitary pairs

  • Fence or mark the exclusion area before machinery arrives.
  • Keep people, vehicles, dogs, boats, aircraft, lights and material storage outside the exclusion area.
  • Keep works outside the nesting period where possible, and maintain the buffer until chicks have fledged and the breeding place is no longer active.
  • Use visual screens or alternative access routes where they reduce disturbance without blocking bird flight paths.

Before habitat disturbance: 3. Pre-clearance survey and site controls

Complete a final pre-clearance check immediately before works. Recheck open ground, rocks, low vegetation, islands, sandbanks, ledges, culverts, bridges and other structures within and beside the work area.

An active breeding place may be identified by a nest, eggs, chicks, fledglings, adults carrying material, repeated alarm calls, territorial defence or birds returning to a particular location.

Do not enter a colony simply to improve the count. Use perimeter observations and remote viewing where possible.

  • Place clearly visible no-go markers around each active breeding place.
  • Brief the fauna spotter catcher, supervisors, operators, subcontractors and visitors before work starts.
  • Show the colony and buffer on daily work maps and in the site induction.
  • Set a clear stop work trigger for any new nest, chick, fledgling, roost or unexpected concentration of birds.
  • Confirm the injured wildlife pathway, after-hours contacts, nearest veterinarian and wildlife carer before clearing.

Before habitat disturbance: 4. Crew induction and work planning

Explain that Kelp Gull nests are usually on the ground and may be difficult to see among rocks, grass, seaweed, debris or low vegetation.

Tell workers not to feed, chase, photograph closely, handle or approach birds. Explain that flushing adults can expose eggs and chicks and can disturb other shorebirds using the area.

Plan sequential clearing so the fauna spotter catcher can inspect each area before machinery enters it.

  • Use low speed limits and defined access tracks near breeding or roosting areas.
  • Keep food waste, fish waste, refuse and construction waste secured. Do not create new feeding opportunities for gulls or other scavengers.
  • Control night lighting near colonies, roosts and shorebird habitat. Use the lowest practical intensity and direct lights away from birds and water.
  • Nominate one person with authority to stop work immediately.

During habitat disturbance: 1. Sequential clearing and spotter authority

Work slowly and in stages. The fauna spotter catcher must have authority to stop work whenever a bird, nest, colony or roost is at risk.

Clear only the approved area and only after the spotter catcher has inspected the next work section.

Use a staged approach from the least sensitive area towards the retained habitat, while maintaining a clear escape route for birds and people.

Stop work if birds flush repeatedly, circle a colony, alarm call, defend ground, return to a nest, or gather around machinery.

  • Inspect the ground, vegetation, rocks, debris, edges and structures before each plant movement.
  • Keep machinery stationary while the spotter catcher checks an unexpected bird or breeding sign.
  • Do not resume until the spotter catcher has confirmed that the risk has been assessed and any required approval or direction is in place.
  • Record each stop work event and the action taken.

During habitat disturbance: 2. Active breeding place, colony or roost

If an active breeding place is found, stop work and withdraw people and machinery without pushing birds through the colony or into traffic, water or other hazards.

Establish a temporary exclusion area from a safe distance. Have a qualified ecologist or the relevant wildlife authority assess the site before work is redesigned or resumed.

Treat eggs, chicks and fledglings as part of the breeding place. Do not move a nest, egg or chick unless this is specifically authorised and directed by the relevant authority.

  • Mark the location without entering the colony.
  • Prevent further approach by workers, vehicles, boats, drones and dogs.
  • Assess whether the breeding place can be retained and whether the work can be moved, rescheduled or screened.
  • For a colony, assess disturbance to nearby roosting and feeding shorebirds as well as direct effects on Kelp Gulls.
  • Apply Queensland high risk SMP conditions where the breeding place is in Queensland.

During habitat disturbance: 3. Handling and injured animals

Only authorised and appropriately trained people may capture or handle a Kelp Gull. Do not attempt to catch a healthy adult, fledgling or chick unless the approved fauna management procedure requires it.

Keep people and machinery away from an injured bird. Reduce noise and visual disturbance while the response is arranged.

Use the project wildlife contact, wildlife authority, veterinarian or licensed wildlife carer for assessment and transport. Follow permit conditions and animal welfare requirements.

  • Do not give food or water unless directed by a wildlife rehabilitator or veterinarian.
  • Use a suitable ventilated container only when capture and transport have been authorised.
  • Record the location, time, apparent injury, photographs where safe, handling time, destination and people involved.
  • If a bird is dead, protect the carcass from scavengers and arrange collection or disposal under the relevant procedure.

During habitat disturbance: 4. Field records and communication

Keep a daily fauna register. Record all sightings, nests, chicks, fledglings, colonies, roosts, interactions, stop work events and outcomes.

Report any damage to a nest, injury, death, unauthorised approach or breach of a buffer to the site supervisor and project ecologist immediately.

Update the site map when a colony expands, birds move to a new nest area or a temporary exclusion zone changes.

  • Record date, time, location, observers, weather, tide or water level and work activity.
  • Record the species, number and behaviour of birds, including flushing, alarm calling and return to nests.
  • Record approval or permit references for any authorised intervention.
  • Photograph signs from outside the exclusion area where this can be done without disturbance.

After habitat disturbance: 1. Post-clearance checks

A site is not clear of risk when machinery leaves. Eggs, chicks, fledglings and displaced adults may remain, and retained colonies can be affected by follow-up works, traffic, lighting and changed access.

Complete a final inspection of the cleared area and the edges of all retained habitat. Look for chicks, fledglings, injured birds, damaged nests and birds trapped by fencing or temporary structures.

Check culverts, drains, pits, buildings, stockpiles, trenches and other places where a bird could become trapped.

Keep exclusion markers in place until the ecologist or relevant authority confirms that the breeding place is inactive or the approval conditions allow removal.

  • Inspect before demobilisation and again after any overnight pause where birds may return.
  • Remove temporary hazards, cover pits, secure waste and maintain safe escape routes.
  • Do not remove nesting material or alter a retained colony without approval.
  • Report any bird remaining inside the work area through the wildlife response pathway.

After habitat disturbance: 2. Reporting and compliance

Prepare a completion report that compares the approved work area with the area actually disturbed. Include all Kelp Gull records and any changes to colonies, roosts or feeding habitat.

Report incidents to the regulator, permit holder, land manager and project ecologist within the timeframe required by the approval or management program.

Retain maps, photographs, daily fauna registers, induction records, stop work forms, permits and wildlife treatment records.

  • State whether active breeding places were present and whether buffers were maintained.
  • List all captured, relocated, injured or dead animals and their outcomes.
  • Document any unauthorised disturbance, nest damage, machinery strike, lighting issue or waste problem.
  • Record corrective actions, responsible people and completion dates.

After habitat disturbance: 3. Monitoring retained habitat

Monitor retained colonies, roosts and nearby feeding areas when works occur within the local breeding season or close to an established colony.

Use the same viewpoints and recording method where possible so changes in nest numbers, bird behaviour and disturbance can be compared over time.

Increase monitoring if birds repeatedly flush, abandon nests, move into the work area, or interfere with roosting shorebirds.

  • Check for continued nest attendance, chicks, fledglings and normal return to the colony.
  • Record changes in colony extent, nest density, water levels, access, lighting, noise and human activity.
  • Monitor nearby migratory shorebird feeding and roosting areas where Kelp Gull disturbance is a project risk.
  • Set a review date before removing monitoring controls.

After habitat disturbance: 4. Incident review

Review every stop work event and wildlife incident with the fauna spotter catcher, supervisor, ecologist and contractor.

Identify whether the trigger was a survey gap, unclear buffer, poor induction, changed water level, unexpected colony movement, waste, lighting or an equipment failure.

Update the site environmental plan before the next work stage.

  • Revise maps, exclusion zones and daily checklists where needed.
  • Retrain workers if an approach, handling event or reporting failure occurred.
  • Share lessons with the project team and future contractors.
  • Escalate repeated disturbance or breeding failure to the relevant authority and land manager.

Rehabilitation actions: 1. Restore breeding and roosting habitat

Rehabilitation should restore safe coastal and estuarine habitat rather than attract gulls to artificial food sources. Kelp Gulls are ground nesting birds, so replacement nest boxes and bat boxes are not suitable breeding structures for this species.

Restore open coastal ground, islands, rocky areas, low vegetation, grassy headlands, ledges and other habitat types that were present before the works where this is consistent with the approved design.

Use local substrates and locally appropriate native plants. Retain natural rocks, shell material and low cover where they form part of the breeding place.

Avoid creating steep, unstable edges, loose wire, entangling materials or isolated pits that could trap birds.

  • Reinstate shorelines, saltmarsh margins, dunes, rocky margins and island contours where these were disturbed.
  • Remove temporary fencing, spoil, unused materials and construction debris from breeding and roosting areas.
  • Keep restored breeding ground free of dense weeds if the local site supports open nesting habitat.
  • Maintain safe access between roosts, breeding places and feeding areas without creating new disturbance routes.

Rehabilitation actions: 2. Artificial nesting and roost structures

Do not install nest boxes or bat boxes for Kelp Gulls. The species nests on the ground and no use of hollows, caves or burrows has been established for its Australian breeding sites.

Artificial nest platforms or other nest structures should only be considered where a qualified ecologist and the relevant authority identify a site specific need, and where the structure matches local ground nesting habitat.

Do not create an artificial colony near homes, roads, airports, waste facilities or important shorebird roosts without a detailed assessment of likely impacts.

  • Prefer protection and restoration of suitable natural ground over artificial structures.
  • Obtain approval before installing, relocating or modifying an artificial nest site.
  • Design any approved structure to prevent flooding, collapse, entanglement and access by predators, while allowing inspection without entering the colony.
  • Monitor use, breeding success, disturbance and effects on other birds before deciding whether the structure should remain.

Rehabilitation actions: 3. Weeds, waste, water and lighting

Control weeds that obscure or displace suitable open nesting ground, using methods that do not disturb an active colony.

Secure food waste, fish waste, refuse and construction waste. Do not establish feeding areas that increase gull concentration or conflict with nearby shorebirds.

Manage water levels and drainage so restored breeding ground is not unexpectedly flooded, while retaining the natural hydrology required by the wetland or estuary.

  • Use weed control timing that avoids active nests, eggs, chicks and fledglings.
  • Remove plastic, string, wire, fishing line and other entangling debris from restored habitat.
  • Keep artificial lighting low, shielded and directed away from colonies, roosts and water.
  • Review tidal, flood and drainage effects after major rain, storm surge or water management changes.
  • Do not use supplementary food to attract or retain birds.

Rehabilitation actions: 4. Long term monitoring

Monitor restored areas through at least the next relevant breeding period and longer where approval conditions require it. Kelp Gull breeding activity is best assessed during November to March.

Compare nest attendance, colony extent, breeding success, flooding, disturbance and use by other waterbirds with the pre-work baseline.

Use monitoring results to adjust weed control, water management, lighting, access and waste controls.

  • Record nests, eggs, chicks, fledglings, adult behaviour and colony boundaries from safe viewing points.
  • Check whether restored habitat is being used by Kelp Gulls, Pacific Gulls, migratory shorebirds and other wetland birds.
  • Investigate repeated nest flooding, abandonment, aggressive interactions, increased disturbance or new predator access.
  • Provide monitoring reports to the land manager, approval holder and relevant regulators where required.
  • Keep the site management plan active while the restored breeding or roosting habitat remains at risk.

Sources