Ticks are common in woodland and moorland areas throughout the UK. They feed on the blood of birds and mammals, including humans. In Scotland the most common tick is the sheep or deer tick, which does not fly or jump, but will climb onto hosts as they brush past vegetation. Some ticks carry and are capable of transmittimg Lyme Disease.
All visitors to the countryside are advised to check themselves for ticks when they return home.
There is excellent information about ticks (and other hygiene related matters) on the Mountaineering Scotland website.
NHS Scotland have also produced and very helpful document Ticks and Lyme Disease Scotland.