Growing in tufts, Crested dog's-tail is a stiff-looking grass, with a tightly packed, rectangular flower spike. Look for it in lowland meadows and grasslands.

Red squirrels are native to the UK but are a lot rarer than their grey cousins. They live in a few special places across the UK thanks to reintroduction projects.

Known for its bandit-like appearance, the polecat was once so persecuted it was on the brink of extinction in the UK. Thankfully, numbers are now increasing in rural Wales and parts of England.…