Stranded Whales
© Sky News, Australia
Queensland Parks and Wildlife Service (PWS) rangers have conducted an aerial survery after seven killer whales became stranded off Queensland's Fraser Island on Wednesday.

The survery showed no signs of any whales being re-stranded. Two of the whales died, reportedly a mother and her calf, around 9am (AEST) on Wednesday.

Rescuers managed to free the surviving five, including two around 5pm (AEST) on the rising tide.

The PWS Acting Regional Director Peter Wright said rangers will continue to monitor a pod of whales that remain deep near Deep Creek.

'A 300m exclusion zone around the whales is being established for all water vessels,' said Wright.

Sea World's marine expert Trevor Long says there are not many killer whale strandings worldwide let alone off Queensland's coast.

He says they are smart animals and rarely ventured into shallow waters.

'I'm not sure why they would be there,' Mr Long said.

'Whether they are following some type of food into there, that might be seal or whale, I don't know.

'It's certainly unusual to see them in those shallow waters inside Great Sandy Strait (off Fraser Island).'

Killer whales follow the humpback whale migration to prey on calves.