Plymouth Rocks are large, long-lived chickens. Some varieties are good layers while others are bred principally for meat.
The Plymouth Rock was developed in the United States in New England in the middle of the 19th century and was first exhibited as a breed in 1869.
There are seven varieties of Plymouth Rock chickens: Barred, Blue, Buff, Columbian, Partridge, Silver-penciled and White.
Generally, Plymouth Rocks are not aggressive, and tame quite easily. They are docile and may show broodiness.