More than one million birds will be destroyed across seven properties in Victoria to tackle the continuing spread of bird flu.

Some 240,000 birds will be destroyed on a NSW egg farm to tackle the spread of bird flu in two states.

Hundreds of thousands of birds have been killed on a poultry egg farm after authorities detected bird flu on the property.

Authorities are urgently confirming whether a large-scale bird flu outbreak in one state has spread across the border.

Bird flu (H5N1) virus was found in dairy cows in the US. Raw milk from infected cows contains high virus levels.

A commercial farm in NSW is under lockdown after bird flu was found in chickens, although the strain is different to the outbreak impacting Victoria.

A commercial farm in NSW is under lockdown after bird flu was found in chickens, although the strain is different to the outbreak impacting Victoria.

A commercial farm in NSW is under lockdown after bird flu was found in chickens, although the strain is different to the outbreak impacting Victoria.

The highly contagious and deadly strain of avian flu was detected near the first site, with authorities now required to euthanise an estimated 87,000...

A poultry egg farm has gone into immediate lock down after a case of the highly contagious bird flu was detected in a second state.