Mossad

In 2013, a Kestrel was captured with a tracking tag in Turkey and X-rayed on suspicion of being an Israeli spy, but was later released after officials concluded it was not a spy for Mossad. – WTF Fun Facts

Source: https://www.independent.co.uk/news/world/europe/kestrel-suspected-of-being-israeli-spy-by-turkish-authorities-turns-out-to-be-just-a-bird-8734209.html