The Scots Grey is a breed of chicken originating in Scotland. It is so named because of its striped plumage, which is called either Barred or Cuckoo by poultry enthusiasts. Though superficially similar to breeds such as the Cuckoo Marans and Barred Plymouth Rock, the Scots Grey's feathers have a less distinct pattern with a steel-gray base. It can also be sexually differentiated based on color of the adult birds, as hens usually have a noticeably darker hue. Scots Grey are relatively heavy chickens, with hens weighing 7-9 pounds (3.2-4 kilos), and roosters weighing 9-11 pounds (4-5 kilos).
In body type, Scots Grey are tall, upright chickens. Though they share a place of origin and often color with the Scots Dumpy, this height can be used to set the two apart. Scots Grey have white skin, a single comb, and red earlobes. They are considered to be dual-purpose, laying both a good amount of white eggs and producing wholesome meat. In temperament, they are active birds that do best under free range conditions, and may develop destructive habits when confined. They are hardy, and can forage well. Hens are not generally inclined to go broody.
Scots Grey have been known in their country since the 16th century, and were developed as barnyard fowl for small farms and crofts. Breeds which are thought to have influenced their development include Dorkings and Malays. Though they have been popular among poultry fanciers for exhibition, and have their own breed club, they are classed as an endangered breed by the Rare Breeds Survival Trust.