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.

A tall and robust species of sedge, the Great fen-sedge has long leaves with sawtooth edges. It forms dense stands in lowland fens and around lakes.

A familiar 'weed' of gardens, roadsides, meadows and parks, red clover has trefoil leaves and red, rounded flower heads. It is often used as fodder for livestock.

Once a rare visitor to the UK, this striking gull is now found nesting here in large colonies.

The barbastelle is a scarce bat that lives in woodland and forages over a wide area. It has a distinctive 'pug-like' appearance because of its upturned nose.

This streaky brown bird is a winter visitor, occasionally found walking around the muddy margins of marshes.

This common hoverfly is often seen visiting flowers. It's named for its stripy thorax, which looks a bit like a football shirt.

This elegant wading bird is a rare visitor to the UK, though occasionally one or two of pairs will nest here.

This dashing diving duck is a winter visitor to the UK's seas, coastal lakes and occasionally inland water bodies.