A scarce and declining bird, the tree sparrow can be spotted on farmland and in woodlands; it is not an urban bird in the UK. It has a brown cap and black cheek-spots, unlike the similar house…

A medium-sized diving duck, the goldeneye can mainly be spotted in winter when birds fly in from Northern Europe. Conservation efforts have helped small numbers of these birds to nest in Scotland…

Listen out for the 'chattering' song of the reed warbler, while wandering the UK's lowland wetlands in summer. A small, brown bird, they are quite hard to see.

A streaky brown bird, the reed bunting can be found in wetlands, reedbeds and on farmland across the UK. Males sport black heads and a white 'moustache'.

This purply-brown seaweed is a common feature on our rocky shores and on our dinner plates.

These distinctive beetles are often found around dead birds and small mammals.

Gwaith gwahaddod yw’r sypiau brown o ddaear sy’n gallu addurno lawnt. Mae’r mamal brown, byrdew yma’n treulio ei oes yn creu tyllau o dan y ddaear gyda phawennau siâp rhaw, yn hela am bryfed…

The house sparrow is a familiar, streaky brown bird of towns, parks and gardens. Males sport a grey cap and black bib, the size of which indicates their status.