Clever birds work it all out and get trains to do their heavy work for them
Mike Fairgrieve
RAIL police were flapping when they found small pebbles and gravel on stretches of North-east railway sleepers.
But you could have knocked them down with a feather when they discovered the bird-brained culprits were crows!
Sgt Mike Burnett of British Transport Police said: "The problem was spotted by an engineer doing maintenance work.
"It was first reported as people putting stones on the line.
"But something did not make sense. It was out at Kennethmont and Huntly and that's not an area where we would expect trouble.
"Our first thought was kids, but it's in the middle of nowhere."
Then an eagle-eyed signal operator solved the mystery.
Mike said: "He spotted the birds putting them on the lines so the trains would go over them."
It turns out the crows know exactly what they're doing.
They place the stones on the tracks, wait for trains to run over them, then swallow the debris, which helps them digest their food.
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