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.

The long mane of tentacles that stream out from the lion's mane jellyfish is stunning… literally! Look but don't touch when it comes to these jellyfish - they give a powerful sting.

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.

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!

The black-headed gull is actually a chocolate-brown headed gull! And for much of the year, it's head even turns white. Look out for it in large, noisy flocks on a variety of habitats.

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…

Once considered a weed of cornfields, the cornflower was nearly wiped out by intensive agricultural practices. Today, it can be found in deliberately seeded areas, and on roadside verges and waste…