The nodding, blue bells of the harebell are a summer delight of grasslands, sand dunes, hedgerows and cliffs. They are attractive to all kinds of insects, too.

A good luck charm for travellers, Germander speedwell can be seen along roadsides, grassy lanes and hedgerows. Look for clumps of bright blue flowers.

A summer visitor, the wheatear is a handsome chat, with black cheeks, white eyestripes, a blue back and a pale orange chest. Look for it on upland heaths and moors.

Often found carpeting damp grassland and woodland clearings, the blue flower spikes of bugle are very recognisable. A short, creeping plant, it spreads using runners.

The song thrush is a familiar garden visitor that has a beautiful and loud song. The broken shells of their blue, spotty eggs can often be found under a hedge in spring.

The upright, blue flower spikes of Viper's-bugloss can be spotted on chalk grassland, sand dunes, cliffs and banks. Its spotted stem is thought to resemble a viper.

The yellow meadow ant is known for creating anthills in grassland habitats. It has a close relationship with the chalkhill blue butterfly - protecting the larvae in return for a sugary substance…

The spiky, silvery leaves of Sea-holly give this plants its common name. Look for its beautiful, thistle-like, blue blooms on coastlines and sand dunes in summer.

The jay is a colourful member of the crow family, with brilliant blue wing patches. It is famous for searching out acorns in autumnal woodlands and parks, often storing them for the winter ahead…