A small colourful sea slug that can be found grazing on sea mats on the rocky shore and beyond the low water mark.

This dainty white butterfly is now only found in a few parts of Britain, where it flutters slowly through woodland clearings.

The migrant hawker is not a particularly aggressive species, and may be seen feeding in large groups. It flies late into autumn and can be seen in gardens, grasslands and woodlands.

Found almost everywhere, the large yellow underwing is a night-flying moth that is often attracted to lights. It is brown with orangey-yellow hindwings.

Field elm suffered declines due to the devastating effects of Dutch elm disease, but can still be found across much of the UK.

The crested tit is a small, energetic woodland bird from the Highlands of Scotland. It's easily recognised by its prominent black and white crest.

An attractive, olive-green bird, the greenfinch regularly visits birdtables and feeders in gardens. Look for a bright flash of yellow on its wings as it flies.

A breeding bird of fast-flowing, upland rivers, the grey wagtail can also be seen in lowland areas, farmyards and even towns in winter.

Although they might not look it, sea cucumbers like this one belong to the Echinoderm group and are therefore closely related to starfish and sea urchins

A beautiful, tiny fungus, green elf cup can be commonly found on the decomposing wood of deciduous trees in woods, parks and gardens.

The jersey tiger moth is a beautiful moth with creamy white strips on its forewing and bold orange underwings. It is mainly found in the south.