Thieving squirrels have been caught on camera rifling through a man's bird feeder in the US.

The cool, sped-up GoPro footage, filmed in Maine at the end of September, shows the little rodents helping themselves to bird seed, after the the owner of the feeder removed the squirrel baffle.

The filmer later wrote online: "Whenever I take the squirrel baffles off of my bird feeders, the chipmunks and gray squirrels immediately move in to steal seed.

"I film many different bird species in my backyard, and sometimes the GoPro captures more than just birds."