Here's a video I made about David Glyn Jones, who is on the trail of what he believes is a puma living wild on some rough ground just outside his home town of Preston. David is deaf, which to my untrained eye appears to go some way to explaining why he is more observant than average. Plus he's been tracking wildlife since he was a boy, and loves spending time outdoors. He can look at a tree branch, patch of Himalayan balsam or a grass field and spot signs that I wouldn't have noticed in a million years. Tracking down whatever-it-is has become something of an obsession for him. I managed to borrow a couple of trail cameras from Minox to help with his quest. I went to visit him at home last week, and this is the result.