
Yokohama
Animal identity
One living story. Knowledge kept together.
Yokohama chickens at the scientific poultry center in Sinsteden, Germany. · Hagen Graebner · CC BY-SA 3.0 · License terms
Recognize what makes this population itself.

Long tail, saddle and sickle feathers create its dramatic outline. Red-Shouldered birds contrast red markings with a white background; White birds form another established color. Small tinted eggs are secondary to its ornamental purpose.
The Conservancy's reference profile describes small eggs with light tinted brown shells. These descriptions help compare the population's traditional farm role; actual performance also depends on age, breeding line and management.
Appearance introduces the animal; a registry standard explains a documented breeding population. A photograph, color or familiar informal name alone cannot establish every individual’s membership.
- Recorded roles
- Ornamental
- Egg Color
- White/Cream
- Egg Size
- Small to Medium
- Temperament
- Active, alert
- Breed Weight
- Male 4.5-5.25 lbs / Female 3-3.5
Reference values from the breed’s conservation profile. Weight describes a reference animal, not a universal feeding or fitness target. Temperament varies with breeding, individual experience and handling.
Why Yokohama names differ between countries
The Rare Poultry Society explains that European imports of several Japanese long-tailed types were associated with the port of Yokohama. German fanciers later restricted Yokohama to a particular red-saddled form and used Phoenix for a white-lobed, single-combed type. British fanciers used Yokohama more broadly. Consequently, a British label may cover birds that another country's system separates. A teaching collection must specify that context instead of silently combining national identities.
Interpreting this population in practice
How its documented identity shapes learning and conservation.
Yokohama and Phoenix chickens share associations with Japanese long-tailed poultry but are distinct developed breeds. Teach their different form and selection histories rather than using the names interchangeably. Long feathers need practical care as well as admiration. Imported ancestral types, European development and present standardized populations should be described as separate stages.
Sources for general species learning
Sources behind the breed’s story.
The original history, identity and conservation teaching above draws on these cited accounts. Official links open the full material for further study.
Keep learning from official information.
These research portals help locate further material. A search link is a route for exploration; it is separate from the sources used for the article above. Domestic breed information, wild-species assessment, historical books and new research need their own context.
- FAO DAD-IS · Domestic breed information
- IUCN Red List · Species assessments
- Biodiversity Heritage Library · Historical literature search
- USDA National Agricultural Library · Research search
- Google Scholar · Scholarly literature search
- Open Library · Book catalogue search
- HathiTrust · Digitized catalogue search
