Goats have roamed Snowdonia for 10,000 years; now they face secret cull Marksmen begin killing to halt damage to woods and gardens - and make way for sheep They are shaggy symbols of national independence and a well-loved feature of the landscape of north Wales, but up to a quarter of all the wild goats living in Snowdonia are to be culled to allow sheep to graze more freely, to protect young trees and even to avoid car accidents.