Experts say the discovery could help us better understand how deer shape woodland ecosystems and influence conservation ...

We expected that fallow deer would primarily graze on the abundant grasses in the area's livestock pasture, diversifying their diet over winter to browse on trees as they would need to compensate ...

Visit BBC Webwise for full instructions Brought to the UK by the Normans for hunting, fallow deer are now the most widespread deer in the UK and can be seen in many parks and forests in Wales.