A dark, stocky warbler, the Cetti's warbler is most likely to be heard, rather than seen - listen out for its bubbling song among willow, marsh and nettles.

A sure sign that spring has arrived, the Cuckooflower blooms from April. Look out for its delicate, pale pink flowers in damp meadows and ditches, and on riverbanks.

The laughing 'yaffle' call of the green woodpecker can be heard in our woodlands, parks and gardens. Look out for it hopping about your lawn, searching for ants to eat.

When spotting the pintail in winter, look out for the fabulous, long tail feathers that characterise it. This dabbling duck feeds at the water's surface, rather than diving for food.

Watch the deadly accurate flying of the spotted flycatcher in woodlands, gardens and parks. It sits quietly on a perch waiting for an unsuspecting insect to fly by, deftly dashing out to seize it…

With their beautiful striped tentacles, it's easy to see where dahlia anemones got their floral name from. Look out for them next time you're rockpooling!

As its name suggests, the Dwarf thistle is a low-growing plant that is almost stemless - its purple, thistle-like flower heads growing out of a rosette of spiny leaves.

Look out for the swift-like shape of the hobby as it darts over heathlands and wetlands in summer. They are keen hunters, chasing and catching fast-flying dragonflies and small birds on the wing…

The Common darter is a red, narrow-bodied dragonfly that can be seen throughout summer and autumn. It is hovers around all kinds of waterbodies, darting out to surprise its prey.

A familiar 'weed' of gardens, roadsides, meadows and parks, White clover is famous for its trefoil leaves - look out for a lucky four-leaf clover in your own garden!

As it names suggests, the common crossbill has a large bill that is crossed at the tip - perfect for picking the seeds out of pine cones. Look for it in conifer woodlands, mainly in the north and…