The pine marten is back, roaming the UK’s woodlands. And its return to some spots after almost a century might be helping out the red squirrel…

SVEN-ERIK ARNDT/ARTERRA/UNIVERSAL/GETTY ● There was a mallard duck ...

Check your answers against our explanations. Remember, there are no ‘trick’ birds or extreme rarities among these...

Straggly but also sensitive, a horse’s sensory hairs help them navigate the world. Liz Richardson MRCVS explains the part they play

Red kites, great spotted woodpeckers and pink-footed geese are only a few of the birds doing brilliantly in the British Isles right now. Mark Cocker celebrates their success stories and looks at what might be learnt from them

Karen Youngs is on the lookout for nature’s collectibles during a sunny spring walk