Whale and dolphin 'headcount' under way
A nationwide "headcount" of whales and dolphins is under way and the public are being asked to get involved.
Wildlife charity, Sea Watch Foundation, has organised the annual week-long event.
Steve Truluck told the BBC that more than a dozen different species were spotted last year.
It is hoped that data collected will help build a picture of mammal numbers around the coast.
Pictures: shetlandphototours.co.uk
