Video report by ITV News Correspondent Neil Connery.
A remarkable photo has captured a weasel on a woodpecker's back as the bird flies through the air.
The photographer, Martin Le-May from Essex, said he "feared the worst" for the green bird after hearing "distressed squawking" during its struggle with the mammal at Hornchurch Country Park.
After Le-May managed to capture the incredible image - which has become a hit on Twitter since it was taken earlier today - the creature managed to escape with its life.
Slightly blurred images also captured the rest of the battle.
Describing the events to ITV News, Le-May said he was taking a walk with his wife when the battle took place.
Le-May said he hoped his picture would inspire others to venture out of their local green area and get snapping.
Read more: Twitter goes wild for weasel on a woodpecker pictures