One person in Nova Scotia has managed to capture a truly amazing clash on camera.
Here, a squirrel has hit the jackpot for a foraging scavenger - a discarded slice of pizza.
He starts munching away on it, only for a crow to swoop in from the skies and try to steal it away.
What follows is a battle of epic proporations - similar to the iguana trying to escape from the snakes in BBC's Planet Earth II.
Watch it below: