People of Scottish descent are usually red haired, but not always, however most people with red hair probably have a Scottish ancestor. In some families there may be a certain type of nose bridge where there is a bump.
I am of Polish descent, and like most nationalities and ethnicities of Europe, it think physical traits can vary depending on the region your ancestory derives from and also their own backgrounds....
The previous answer was an incorrect and baseless stereotype. Though blue eyes are the most common, only around 10% of Irish have red hair, and around 40% have some sort of freckling. The most common...