The bird flu straing that arrived in Australia for the time last week has already caused the deaths of hundreds of millions of birds and mammals around the world.

A single migratory wild bird in Western Australia has been detected with the disease, triggering fears a deadly strain may have reached our shores.

Agriculture minister says no evidence of mass mortality or infection in poultry as WA authorities say a second bird is sick and being tested

Migratory seabird known as brown skua tests positive for avian influenza