You are most likely to spot the cat flea if you have pets. It will feed on cats, dogs and people, although it can't live on us. It is a pest and needs to be controlled in the house for the…

A scarce tree of central and southern England, in particular, the small-leaved lime can be found in ancient woodland. It is has sweet-smelling flowers in summer and nut-like fruits in autumn.

The all-black rook is a sociable bird, so can be spotted in flocks or nesting colonies, known as 'rookeries'. Unlike the similar carrion crow, it has a grey bill and 'baggy trouser…

The bright yellow daffodils that adorn our roadsides and parks are likely to be garden varieties. Head to a woodland or damp meadow in North or South West England, or Wales, to see a true wild…

As the only crow with a red bill and red legs, the all-black chough is easy to identify. But it's harder to spot: there are only small, coastal populations in Scotland, Ireland, Wales,…

Look out for the black guillemot all year-round at scattered coastal sites in Scotland, England, Wales and the Isle of Man. It tends not to travel far between seasons, breeding and wintering in…

Parsley fern lives up to its name - the pale green fronds form in clusters among rocks and look just like parsley. Look out for it in upland areas, particularly in Wales and Cumbria.

The broad-bordered bee hawk-moth does, indeed, look like a bee! A scarce moth, mainly of Central and Southern England, it feeds on the wing and can be seen during spring and summer.

At nearly 7 cm long (including the female's long ovipositor), the great green bush-cricket certainly lives up to its name! It can be found in grassland, scrub and woodland rides in Southern…