"I don't know if the pig thinks he's a horse, or if the horses think they're pigs!"

It's a blended family with a difference.

Two old horses on David Uebergang's south-west Queensland property have taken up with a young boar. And the three have become inseparable.

"They're all running around as one big happy family," David says.

Traditionally, horses and pigs don't get along. But nobody told the young boar.

"The fact they've bonded in the wild is very unusual," David says.

"They have a routine. Because they're free-range, they always pick the best crops to eat. They walk down to the dam to have a drink in the afternoon. They follow each other single file; horse, pig, horse."

David says the only thing that concerns him about the quirky 'family' is that pigs aren't usually in the sights of cameras, but guns.

"Normally we'd encourage the hunting of the wild pigs, but if something happened to this one, the affect on the horses wouldn't be good ... and we'd be a bit concerned if something happened to him."

David Uebergang captured the footage of the horses and boar (above) while on his farm bike.