Breed · Chicken breed
Plymouth Rock
Gallus gallus domesticus
Also known as: Barred Rock, Rock
The Plymouth Rock is an American dual-purpose chicken breed, most familiar in its Barred variety, valued for docility, cold-hardiness, and steady production of brown eggs on farms and in backyard flocks.
Record
Livestock breed- Breed of
- Chickens
- Species
- Chicken (Gallus gallus domesticus)
- Type
- Dual-purpose
- Origin
- New England, United States
- Recognition
- Registered
- Conservation status
- Not establishedReported per source and date (e.g. FAO DAD-IS); not a fixed property of the breed.
- Registries
- FAO DAD-IS · Global · as of 2026-07-12Chicken breed recorded in the global domestic animal diversity inventory.
- American Poultry Association (Standard of Perfection) · United StatesRecognised breed; Barred variety standardised from 1874.
- Adaptation
- Notably cold-hardy and robust, making it well suited to cool and temperate climates with basic shelter.
- Primary uses
- Dual-purpose meat and egg production, Backyard and smallholder flocks, Barred variety used in sex-linked crossbreeding
Registry listing or variety protection is jurisdiction- and date-specific and does not by itself indicate current commercial availability, universal cultivation approval, patent status, or a recommendation.
The Plymouth Rock is a dual-purpose chicken breed developed in the United States in the mid-19th century and standardised in New England. Its best-known form is the Barred Plymouth Rock, with crisp black-and-white barred plumage, though several other colour varieties are recognised.
Long a mainstay of North American farmyards, the breed is prized for a calm temperament, hardiness in cold weather, and a good balance of egg and meat production. Barred Rock hens also feature in sex-linked crossbreeding because the barring gene allows day-old chicks to be sorted by markings.
Origin and history
The Plymouth Rock was first exhibited in the United States in the mid-1800s and admitted to the American Poultry Association standard in 1874, with the Barred variety established first. It became one of the most popular general-purpose farm fowls in North America before the rise of specialised commercial strains, and it remains widely kept today.
Appearance and characteristics
- A medium-heavy, long and deep body with a single comb and red earlobes.
- Yellow legs and skin; several recognised colours, of which Barred is the most iconic.
- Distinct black-and-white barring in the Barred variety, a pattern used in sex-linked crosses.
- A generally docile, easily handled temperament suited to mixed flocks.
Use and management
The Plymouth Rock is kept for both eggs and meat and is well regarded as a productive, low-maintenance dual-purpose bird. Its cold-hardiness and calm nature make it popular for backyard, free-range, and smallholder systems in temperate regions. The barring gene of the Barred Rock is exploited in traditional sex-linked crosses to distinguish male and female chicks at hatching.
Relationships
Evidence-backed connections in the knowledge graph.
Scope & limitations
Geographic scope: Global breed overview; standards, colour varieties, and populations vary by country and registry.
Climate context: Favoured in cool and temperate regions for its cold tolerance; kept more widely with appropriate management.
- This is a general breed profile, not strain-specific performance data or husbandry guidance.
- Multiple colour varieties and strains exist with differing traits; only qualitative generalisations are given.
- Conservation risk status is not asserted here because it varies by variety, country, and population.
Sources
This article draws on the following authoritative sources. See our sources & methodology for how they are selected.
- [1]DAD-IS — Domestic Animal Diversity Information System (opens in a new tab)Authoritative
FAO Commission on Genetic Resources for Food and Agriculture
Cited for: Breed recording and global diversity status
- Type:
- Official registry
- Jurisdiction:
- Global
- Accessed:
- 2026-07-12
- Moderate
Cited for: Breed origin, history, and general characteristics
- Type:
- Reference database
- Jurisdiction:
- Global
- Accessed:
- 2026-07-12