A man has filmed the moment hay started flying resembling a "dust devil" in Cornwall.
Peter Nankivell was at home in Truro when he noticed the rare weather phenomenon.
In the clip he recorded, parts of the grass and hay from the field can be seen raising into the sky in a tornado-like swirl.
Peter told Cornwall Live : "This hasn't been the first time its happened in this field as a couple of years ago we had noticed a smaller 'dust devil' that fizzled out into nothing."
The dust devil he managed to capture on camera on Saturday afternoon, however, was far more impressive as it "started off small" but "gained momentum really quickly".
He said: "I was stood by the hedge as it passed through me into a neighbouring field.
"I was left covered in hay and so was the hedge line.
"Unfortunately I don't have footage of that. The sheer scale of the size of this 'dust devil' cannot be easily explained, however we could see clumps of hay being engulfed by clouds way up in the sky.
"I went for a walk later that day and could see clumps of hay that had landed in neighbours' gardens and fields.
"The horses around us were loving food falling from the sky. I think that this phenomenon happens more than we think, however it was only visible on that day because of the loose cut hay on the ground."
Dust devils - also referred to as willy willy - are upward spiralling dust filled vortexes of air that occur when the ground is dry, the Met Office explains.
They are usually several metres in diameter at the base, then narrowing for a short distance before expanding again.
They mainly occur in desert and semi-arid areas, where the ground is dry and high surface temperatures produce strong updrafts.
The website adds: "The initial rotation may be caused by irregularities in the surface. Unlike tornadoes, dust devils grow upwards from the ground, rather than down from clouds.
"In the stronger dust devils, a cumulous cloud can be seen at the top of the rising column of warm air. They only last a few minutes because cool air is sucked into the base of the rising vortex, cooling the ground and cutting off its heat supply."
