This charming little warbler is an increasingly common sight in autumn, when migrants pass through the UK.

Look for the pinky-white flowers of the dog-rose in summer, and its bright red rosehips in autumn. It is a scrambling shrub of hedgerows, woodlands and grasslands.

Look out for the bright red eyes of this speedy crab in rockpools - but be careful, they're notoriously feisty and will give a painful nip!

The largest of the UK wrasse species, the ballan wrasse with its striking patterning is a delight for any rocky reef snorkeller or shallow water diver!

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.

Fir clubmoss is a primitive plant found in rocky, moorland and mountain habitats. The stems of this tufted, upright fern look like tiny conifers.

This small, white heron is an increasingly common sight in parts of the UK as it spreads north from continental Europe.

A tall plant, purple-loosestrife can form dense stands of bright purple flower spikes in wet habitats like reedbeds, fens and marshes.

The petals of the rare Lizard orchid's flowers form the head, legs and long tail of a lizard. They are greenish, with light pink spots and stripes, and smell strongly of goats! Spot this tall…

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

The beautiful barn owl is, perhaps, our most-loved owl. With its distinctive heart-shaped face, pure white feathers, and ghostly silent flight, it's easy to identify. Look out for it flying…