Well for one the Warminster Thing is a proven hoax, the guy admitted it after about 40 years but yeah, I have friends in the town who claim to have seen things on or near Cradle Hill and Cley Hill, one friend has personal video of some blue & green lights "dancing" in a field below Cradle Hill a few years back.
Personally I've seen shapes in the clouds from on top of Cley Hill that couldn't be explained, the good old cigar shape for one and once saw a bright light flash across the sky and disappear behind the Longleat Forest then re-appear about a mile away in 2 - 3 seconds. People say that most of it can be explained by having the largest Army training ground in the South of England right next door to the town but there is no way the UK MoD have any flying machine that could have done that so quickly back in the '80's