Something going on

We goes up a hill and hears an almighty helicopter racket, but don't get to see it in time. So I whips out me trusty phone, loads up me trusty FlightRadar app, and over time this Search and Rescue flight pattern emerges. Either doing a search pattern, or practising one. Usually, given the SAR aircraft are based at Inverness airport across the Firth, it's a pactice. But not always.