Two black bears were found fighting over a female in a person's backyard.

Black bears in backyard bust-up over female

Black bears in backyard bust-up over female

A New Jersey homeowner was shocked when he found the wild native North American animals sizing up against each other and versing in his garden.

Corey Bale said he went outside to investigate last week after a neighbour told him there was a bear behind his Frankford Township home.

But when he stepped outside, he heard a loud commotion and discovered there were actually two big bears in a brawl.

Corey videotaped the bears and filmed their jaws hitting together as they wrestled.

The violent animals were covered in blood before they were broken apart and the man thinks the duo were fighting over a third female bear.