A delicate, small plant of woodlands and hedgerows, wood-sorrel has distinctive, trefoil leaves and white flowers with purple veins; both fold up at night.

This dainty white butterfly is now only found in a few parts of Britain, where it flutters slowly through woodland clearings.

This wading bird is mainly a visitor on its spring and autumn migration, though a small number nest in Scotland.

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.