Ein hunig neidr wenwynig, gellir gweld y wiber swil yn torheulo yn yr heulwen mewn llennyrch mewn coetiroedd ac ar rostiroedd.

This unmistakable moth spends the winter as an adult, tucked away in a sheltered spot like a cave or outbuilding.

This huge gull can be seen around most of the UK's coasts in summer, with some venturing inland in winter.

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 large shrike visits the UK in small numbers each year, passing through on migration or spending the winter here.

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

This small finch nests on moorlands and coastal crofts, spending the winter on the coast. The UK population has declined dramatically.