A brazen bird snatched a video camera that was recording crocodiles in northwest Australia and captured fascinating footage of its 110-kilometre journey across the country's remote landscape.

Wildlife rangers in Western Australia's Kimberley region released video on Monday that reveals the sea eagle's caper.

The bird's flapping wings can be seen as it grabs the device and takes off, and the eagle later poses for a selfie, poking its face into the camera lens.

Rangers set up the motion-sensor camera along the Margaret River in May, hoping to record images of crocodiles.