The guelder-rose is a small tree of hedgerows, woods, scrub and wetlands. It displays large, white flowers in summer and red berries in autumn, which feed all kinds of birds, including Bullfinches…

The alder fly is a blackish invertebrate, with delicately veined wings that it folds over its body like a tent. It can be found near ponds and slow-flowing rivers; the larvae living in the silt at…

The caterpillars of this fluffy white moth are best admired from a distance, as their hairs can irritate the skin.

A common moth across most of the UK. The large, hairy caterpillars are often seen in late summer.

Famed for its super-fast fishing dives into the sea, the northern gannet (or gannet) is a distinctive white bird with a yellow head and black wingtips. It nests in large, noisy, smelly colonies on…

This snowy white moth is easily mistaken for the similar brown-tail, until it lifts its abdomen to reveal a burst of golden-yellow.

The serotine is one of the first bats to appear at night and can be seen around lamp posts chasing moths, or at treetop height. It likes to roost and hibernate in old buildings in the south of the…

This large, fluffy-looking moth is on the wing in July and August, but you might spot a caterpillar at almost any time of year.

The common prawn is a familiar sight to anyone who has spent time exploring rockpools - particularly their characteristic quick dart into the darkness just as you spot them!