Crop circles could finally have found their niche with news that leaving fallow patches in cereal fields could help reverse a decline in UK birdlife.
Could crop circles hold the key to reversing the drop in birdlife?
Skylark breeding rose nearly 50% when small patches of cereal fields were left unsown, a two-year study found.
Now farmers are to be offered government subsidies to clear the areas as part of a conservation push.
And the trials showed that despite a rise in weeds on the unsown patches, farmers did not lose any yield.
Experts say leaving two small patches bare per hectare could reverse a 52% drop in skylark numbers since 1970.
"Crop circles once fascinated the nation; undrilled patches could be the new phenomenon, and one with a worthwhile legacy," said Dr David Gibbons, head of conservation science at the Royal Society for the Protection of Birds (RSPB).
Farmers joining a new scheme in which they are paid £30 per hectare of land are likely to be asked to take part.
Environment Minister Elliot Morley said: "I hope farmers across the country will make the most of these patches so skylarks will once again become a common sight on British farmland."
Scientists are also looking at other aspects of nature conservation on farmland, such as grass margins and weeds as a food source.
Skylark numbers have plummeted by 52% in the UK since 1970
These are expected to help other bird species which have been in decline, such as the yellowhammer and grey partridge.
The £3.6m Sustainable Arable Farming For an Improved Environment (Saffie) project received £1.5m from the government as well as cash from the Royal Society for the Protection of Birds (RSPB), the Crop Protection Association and Home Grown Cereals Authority.
Last year a rare bumblebee species was found on a Saffie site.
Jonathan Tipples, chairman of Saffie and a farmer in Kent, said: "I am delighted that Saffie is demonstrating that farmers can improve the environment on their farms at no cost to themselves."