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All species

Chicken

Gallus gallus domesticus

Breeding facts

Clutch / litter size

1 – 15

Incubation / gestation

~21 days

Breeding season

Year-round

Clutch size varies by breed and purpose (layers vs broilers vs dual purpose). Incubation is 21 days. Hens can lay year-round with supplemental lighting. Bantam varieties exist for many standard breeds.

Breeds

Recognized breeds with dedicated trait profiles and registry information.

Ameraucana

Breed derived from South American Araucanas, recognized for laying blue eggs. APA recognized. Calm, adaptable, and available in several standardized colors.

Australorp

Heavy, dual-purpose breed originating in Australia from Black Orpington stock. APA American Class. World-record egg layer; docile temperament popular with backyard and production flocks.

Brahma

Giant, feather-footed breed from the United States developed from Asian imports. APA Asiatic Class. Calm, gentle giant and one of the largest standard chicken breeds.

Cochin

Large, heavily feathered breed from China with an exceptionally gentle temperament. APA Asiatic Class. Popular show bird; poor layer but excellent broody hen.

Cornish

Heavily muscled English breed and the foundation of the modern broiler industry. APA English Class. Short, wide body with a pea comb and close-fitting plumage.

Dominique

America's oldest breed, a dual-purpose bird with a distinctive rose comb and cuckoo-barred pattern. APA American Class. Hardy and self-sufficient forager.

Easter Egger

Hybrid or mixed-breed chicken carrying the blue-egg gene, producing eggs in blue, green, olive, or pink. Not APA recognized but widely bred and in high demand. Often confused with Ameraucanas and Araucanas.

Leghorn

Lean, active laying breed from Italy and the backbone of commercial egg production. APA Mediterranean Class. White Leghorn lays more eggs per year than nearly any other breed.

Marans

Dual-purpose French breed prized for laying very dark chocolate-brown eggs. APA Continental Class. Cuckoo Marans most common; quiet and docile.

Orpington

Large, fluffy dual-purpose English breed developed in Orpington, Kent. APA English Class. Exceptionally friendly and available in many color varieties including the popular Buff.

Plymouth Rock

Dual-purpose breed popular in American farmsteads for over 150 years. APA American Class. Barred variety is most common; calm, friendly, and productive.

Polish

Ornamental breed with a distinctive crest of head feathers. APA Continental Class. Calm and friendly but impaired vision from crest can make them startled easily.

Rhode Island Red

Premier American egg-laying breed developed in Rhode Island. APA American Class. Hardy, productive, and adaptable; state bird of Rhode Island.

Silkie

Ornamental Asian breed with uniquely silky, fur-like plumage and black skin. APA All Other Standard Breeds. Exceptionally broody, docile, and popular for hatching eggs of other poultry.

Sussex

Dual-purpose English breed with a long history as a table bird. APA English Class. Alert, curious, and productive; Speckled and Light varieties most common.

Welsummer

Dutch dual-purpose breed known for laying large, deep terracotta-brown eggs. APA Continental Class. Active forager with classic partridge-colored plumage.

Wyandotte

Dual-purpose American breed with a rose comb and laced plumage pattern. APA American Class. Cold-hardy, docile, and available in many color varieties.

Genetics data coming soon

Reference data for Chicken is being curated by the Breed Ledger team.

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