The purple hairstreak is an elusive butterfly with a brilliant purple sheen. It is entirely reliant on oak trees and can be spotted chasing around the treetops in woodlands and parks.

The nuthatch is a tit-sized, grey and rust-coloured bird that can be easily spotted climbing headfirst down tree trunks in woodlands and parks.

The common walnut tree produces a large, brown nut that is familiar to so many of us. It is an introduced species in the UK, found in towns, gardens and parks.

A spindly tree of heathland and moorlands, and damp soils, the downy birch is well known for its paper-thin, white bark. It is so-called for the hairy stalks from which its leaves grow; the silver…

Often confused with the larger but similarly shaped lion’s mane jellyfish, the blue jellyfish can be colourless when young and develop a striking blue-purple bell as it matures.

Mae gwenyn mêl wedi bod yn gwneud mêl i bobl ers miloedd o flynyddoedd! Mae’r gwenyn yma sy’n hawdd eu hadnabod yn weithwyr caled, yn byw mewn cychod mawr wedi’u creu o grwybrau cwyr.

The fine, downcurved bill of the treecreeper makes this tit-sized bird unmistakeable. Look out for it in woodlands and parks, literally 'creeping' around tree trunks.

The greylag goose can be easily spotted around parks, gravel pits and river valleys, but these populations tend to be semi-tame, having been reintroduced. Truly wild populations can be found in…