MPI Confirms Third H5 Bird Flu Case in Wellington Region

New Zealand biosecurity officials have confirmed a third positive detection of high pathogenicity avian influenza (HPAI) H5N1 clade 2.3.4.4b in a wild seabird in the Wellington region. On 21 August 2026, the Ministry for Primary Industries (MPI) announced that diagnostic testing at the Wallaceville Animal Health Laboratory confirmed the viral strain in a northern giant petrel discovered deceased on a remote beach at Cape Palliser in the Wairarapa. Following previous individual wild bird detections of a brown skua on Petone Beach and a kāhu (swamp harrier hawk) in the wider Wairarapa basin, wildlife and biosecurity agencies emphasize that surveillance remains intensive while reassurance is provided to the public.

Current Epidemiological Status and Wildlife Surveillance

Biosecurity New Zealand Chief Veterinary Officer Dr. Mary van Andel highlighted that isolated findings in pelagic and coastal seabirds are not unexpected, given the extensive migratory movements of sea-going species across the Southern Ocean. Importantly, biosecurity authorities confirm that all three detections to date involve single, isolated wild birds. There is currently no evidence of mass mortality across native wildlife colonies, nor has the virus been identified within commercial poultry farms or backyard flocks.

Health authorities confirm that the overall risk to human health remains very low. Commercial poultry products, including supermarket chicken and table eggs, remain entirely safe for domestic consumption when prepared using standard safe food hygiene practices. However, because HPAI strains present significant biosecurity hazards to domestic avian populations and can occasionally cross species barriers through direct scavenging, national authorities are reinforcing essential safety protocols for companion bird owners and canine guardians.

Essential Biosecurity Measures for Companion Bird Guardians

Owners of domestic birds—including budgies, cockatiels, canaries, and parrots—as well as keepers of small urban chicken coops must maintain strict physical separation between domestic stock and wild bird populations. The avian influenza virus is primarily shed through respiratory droplets, saliva, and faecal material. Pet guardians should implement standard preventive routines immediately:

• Enclosed Housing: Ensure companion birds remain housed in fully enclosed aviaries or indoor environments. For backyard poultry keepers, verify that coop runs are fitted with weather-tight solid roofs and fine-gauge mesh netting that excludes wild sparrows, pigeons, and gulls.
• Protected Feed and Water Stations: Store feed containers in sealed, rodent-proof bins. Always position feed troughs and drinking fonts under covered shelter to eliminate potential faecal contamination from wild birds flying overhead.
• Sanitation and Disinfection: Disinfect feeding dishes, perches, and coop accessories regularly using bird-safe sanitising solutions approved for veterinary hygiene. Clean hands thoroughly before and after handling birds or servicing feeding equipment.
• Monitor Flock Health: Inspect companion birds daily for unusual changes in behaviour or vitality. Typical indicators of avian illness include severe lethargy, reduced feed consumption, nasal discharge, facial swelling, or respiratory rattling. If a pet bird shows signs of illness, consult a registered New Zealand veterinarian promptly for professional evaluation.

Leash Control and Scavenging Precautions for Dog Walkers

Canine companions frequently explore coastal shorelines, estuaries, and riverbanks where dead or exhausted wild birds may wash ashore after adverse weather. While dogs are not natural primary hosts for avian influenza, international veterinary surveillance has documented rare instances where canines contracted illness after chewing or ingesting infected avian carcasses.

To maintain responsible outdoor recreation while minimising viral exposure risks, dog owners are advised to follow key management steps:

• Maintain Controlled Lead Walking: Keep dogs on a physical handheld lead when walking near beaches, tidal estuaries, and coastal reserves. Preventing off-lead scavenging significantly reduces opportunities for pets to interact with wildlife carcasses.
• Prevent Scavenging Behaviour: Actively deter dogs from sniffing, mouthing, or retrieving dead birds or washed-up marine animals. If accidental contact occurs, promptly wash the dog's muzzle and paws with clean water and pet-safe shampoo.
• Observe Regional Council Leash Rules: Adhere strictly to local council dog access designations and seasonal wildlife protection zones established across foreshores and dune systems.

Statutory Reporting and Public Guidance

Under the Biosecurity Act 1993, high pathogenicity avian influenza is a notifiable organism. Early reporting from community members is vital to maintaining effective nationwide surveillance:

1. Do Not Handle Sick or Dead Birds: Members of the public should avoid touching, moving, or transporting dead or distressed wild birds.
2. Report Cluster Sightings: If you encounter three or more dead or visibly unwell wild birds in a single location, keep family members and domestic pets well clear of the area.
3. Contact Biosecurity Hotlines: Report sightings immediately to the Biosecurity New Zealand Exotic Pest and Disease Hotline on 0800 80 99 66, or submit an online notification via the official reporting portal.

For advice on sourcing appropriate enclosures and equipment for companion birds, explore our comprehensive guide on Bird Cages & Setup NZ. For new bird owners setting up beginner environments, consult our Budgie or Cockatiel Setup NZ resource. To review New Zealand statutory permit rules and species requirements, consult our Pet Birds in New Zealand Legal Guide. For selecting suitable leads for coastal walking, refer to our Dog Leads, Harnesses & Collars NZ guide.

Sources

• https://www.mpi.govt.nz/biosecurity/biosecurity-nz/h5-bird-flu/
• https://www.doc.govt.nz/nature/pests-and-threats/diseases/avian-influenza/
• https://www.legislation.govt.nz/act/public/1993/0095/latest/DLM314623.html
• https://www.spca.nz/about/social-return-on-investment