The clouded yellow is a migrant that arrives here from May onwards. Usually, only small numbers turn up, but some years see mass migrations. It prefers open habitats, particularly chalk grassland…

Look for the wood warbler singing from the canopy of oak woodlands in the north and west of the UK. Green above, it has a distinctive, bright yellow throat and eyestripe.

The common sandpiper breeds along rivers, and by lakes, reservoirs and lochs in upland Scotland, Northern England and Wales. It can be spotted as a passage migrant at many inland wetlands across…

The tiny, brown-and-white sand martin is a common summer visitor to the UK, nesting in colonies on rivers, lakes and flooded gravel pits. It returns to Africa in winter.