Herdwick sheep

The Herdwick is a breed of domestic sheep native to the Lake District of Cumbria in North West England. The name "Herdwick" is derived from the Old Norse herdvyck, meaning sheep pasture. Though low in lambing capacity and perceived wool quality when compared to more common commercial breeds such as Merino sheep, Herdwicks are prized for their robust health, their ability to live solely on forage, and their tendency to be territorial and not to stray over the difficult upland terrain of the Lake District. It is considered that up to 99% of all Herdwick sheep are commercially farmed in the central and western Lake District.

The wool quality of a Herdwick has unique qualities relating to durability. Thick bristle type fibres will often protrude from garments forming a protective barrier layer in blizzards—most likely the same qualities that protect the sheep in similar conditions. They have been known to survive under a blanket of snow for three days while eating their own wool.

Severely threatened by the 2001 outbreak of foot-and-mouth disease in England and Wales, the breed has survived due to the intent to preserve this unique animal as a crucial part of traditional Lakeland agriculture. Still far less in number than most commercial breeds, Herdwicks survive largely due to farming subsidies and the aid of the British National Trust for Places of Historic Interest or Natural Beauty.

The root word of the breed's name, herdvyck, "sheep pasture", is recorded in documents dating back to the 12th century. The origin of the breed itself is unknown, but the most common theory is that the ancestors of Herdwick sheep were introduced by early Norse settlers. According to this, it was brought to the region somewhere between the 10th and 11th centuries during the Viking invasions of western England. Alternatively, a piece of local folklore once suggested that it came from a wrecked Spanish Armada ship. In any case, the Herdwick was an important breed in the Lake District by the end of the 12th century.

...
Wikipedia