For many people it's an irresistible notion - that Tasmanian tigers still exist somewhere deep in the Tasmanian wilderness.

Since the death in captivity of the last known thylacine in 1936, there's been endless speculation that a small population of the animals may have survived.One of the true believers is Col Bailey.Describing himself as a bit of an old bushie, Col has spent much of the last 45 years scouring Tasmania for signs of the thylacine.

'Bushie' reveals tiger sighting in Tassie wilderness - Bush Telegraph - ABC Rural (Australian Broadcasting Corporation)