Duck makes headlines in Switzerland for flying at 52kmph in a 30-km zone

It turned out that a similar-looking duck was captured flying in the same spot at exactly the same speed, on exactly the same date seven years earlier, the Facebook post said.

The municipality said it had considered whether the whole thing might not be a belated April Fool's joke or a "fake" picture.

But the police inspectorate said it was impossible to doctor images or manipulate the radar system.

The computers are calibrated and tested each year by Switzerland's Federal Institute of Metrology (METAS), and the photos taken are sealed, the municipality explained.

The last time a duck made headlines was when US-based fintech giant Stripe mistakenly sent a cartoon image of a yellow duck in layoff notifications to some employees. The image, labelled "US-Non-California Duck," was attached to termination emails as the company announced it would lay off 300 employees, or about 3.5 percent of its global workforce.

The error, confirmed by a Stripe spokesperson, occurred during the company’s internal process of notifying impacted employees. The layoffs were first reported by Business Insider and later addressed in a memo to staff by Rob McIntosh, Stripe’s Chief People Officer.

“Some impacted Stripes received a notification error to their personal email accounts,” McIntosh wrote in the memo, which was also shared with CNN. “I apologise for the error and any confusion it caused. Corrected and full notifications have since been sent to all impacted Stripes.”