Shropshire keeps coming up doesn't it. Third or fourth report from that area in the last two years if I'm counting right. Back in the 90s there were similar sightings around the Peak District and everyone called those lot nutters too, turned out multiple witnesses all described the same animal within a few miles of each other.
Black cats in the UK aren't as far fetched as people think. After the Dangerous Wild Animals Act in 76 a load of exotic pets got released rather than licensed, pumas, leopards, the lot. That's nearly 50 years of potential breeding populations and we've barely done a proper survey.
Anyone got photos or was it just a visual? Always the same story - thing's gone before anyone gets their mobile out. Would love to see plaster casts of tracks if anybody went back to check. That's the evidence that actually holds up.