In reply to Touching Centauri:
The scottish wildcat association just got back to me,
here's what they had to say:
"You're venturing into a somewhat debated topic!
Classic common sense suggests a wildcat wouldn't swim all the way to Mull or stowaway on a ferry, however I;ve had sightings there too, one in particular that was hard to discount, it's possible that rehomed hybrid cats (a lot go through Cats Protection) could have brought the genes there, but at different times in the wildcat's evolution there have been various land and ice bridges around so the cats may simply have lasted all this time, supplemented by the occasional feral domestic.
That said, there are still people arguing for wildcats on Ireland, they turn up in folklore and rumour all the time, and if they made it there then Mull's certainly not very far to go at all.
So, it'll remain an area of uncertainty until someone produces a decent photo I'm afraid!"
hey niggle - do you have any photos, or are there any in the books you were mentioning?
graeme cook