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

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

The grey squirrel was introduced into the UK in the 1800s. It provides an easy encounter with wildlife for many people, but can be damaging to woodlands and has contributed to the decline of the…

One of the prettiest hardy ferns, the lady fern is delicate and lacy, with ladder-like foliage. It makes a good garden fern, providing attractive cover for wildlife.

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

The large white is a common garden visitor - look out for its brilliant white wings, tipped with black.

This well-camouflaged wader is a winter visitor to the UK, where it can be seen feeding on wetlands with a distinctive bobbing motion.

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

This glossy wading bird is a scarce visitor to the UK, though records have become more common in recent decades.

This distinctive lark is a passage migrant and winter visitor to the UK, most often found along the east coast of Britain.

This small duck is an uncommon winter visitor to the UK, where they're usually found on lakes, reservoirs and gravel pits.

This hefty diving bird is a winter visitor to the UK, where it can be seen around the coast or occasionally on large inland lakes.