Monster crocodile swims down river with cow in its jaws.

An amazing drone video has emerged from Australia of a huge crocodile feasting on a cow it dragged off a river bank.

The footage, which was filmed on The Kimberley, Western Australia, shows the five-to-six meter reptile swimming with the fully grown cow between its jaws.

It eventually got fed up with the drone buzzing over him and tried to pull the cow underwater.

A drone video of a WA croc swimming with a cow in it's mouth has gone viral. Picture: Trip in a van