Forest rangers are using thermal imaging cameras to try to estimate the number of Wild Boar in the Forest of Dean amid fears of a population explosion.
Last year 100 animals were culled including 22 killed or injured in road accidents, this year the figure is likely to be at least double.
A survey last year suggested there are at least 600 wild boar living in the 43 square mile Forest of Dean in Gloucestershire but the animals have the potential to increase their numbers by up to 200 per cent every 12 months.
