A handsome fish, the tench has olive-green flanks, powerful fins and distinctive red eyes. It can be found in lowland lakes and slow-flowing rivers around the UK.

These colourful little fish are a delight for snorkellers or shallow water divers to photograph, rarely being scared off by their presence!

The bearded tit is an unmistakable cinnamon-coloured bird of reedbeds in the south, east and north-west of England. Males actually sport a black 'moustache', rather than a beard!

Field wood-rush is a short rush that forms tufts in grassy places, such as lawns, parks and downlands. A defining characteristic is its leaf-like leaves that are fringed with long, white hairs.…

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

A dark, stocky warbler, the Cetti's warbler is most likely to be heard, rather than seen - listen out for its bubbling song among willow, marsh and nettles.

The birch polypore only grows on Birch trees. This leathery bracket fungus has a rounded, coffee-coloured cap that was once used for sharpening tools, hence its other name: the 'Razorstrop…