Bogong moths swarm Sydney homes during annual migration south
Endangered bogong moths are migrating through Sydney to alpine caves.
Residents across Sydney and the NSW south coast are reporting unusually large numbers of bogong moths. The insects gather around homes, balconies and street lights this week.
The moths travel to the NSW alpine region, where they shelter through the warm months before returning to breed inland. Each spring, the moths travel up to 1000 kilometres.
They use the night sky and Earth's magnetic field to guide their journey. Authorities and wildlife experts say the influx is natural and harmless.
Strong winds and bright city lights can pull the moths off course into built-up areas. Residents are asked to switch off unnecessary outdoor lights overnight to help them continue their journey.
The species is now internationally recognised as endangered. Their decline is linked to drought, climate change, habitat loss and agricultural impacts.
- Up to 1000 kilometres
- Distance travelled
- Internationally recognised as endangered
- Conservation status
- Night sky and Earth's magnetic field
- Navigation method
Why it mattersBogong moths are a critical food source for the critically endangered mountain pygmy-possum. Their collapse threatens alpine ecosystems and wider natural systems.
AustraliaThis annual migration is part of Australia's major natural cycles. Protecting the moths helps safeguard endangered mountain wildlife and the health of alpine environments.
Corroborated bysmh.com.au·theage.com.au
✓ Claims checked against the source. checked 10 h ago
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