Poultry
Leghorn
C tier
Leghorn is a light Mediterranean breed originating in Italy (from Livorno), selected primarily as a prolific white-egg layer with active foraging behaviour and heat tolerance. Birds are typically white or brown in commercial and exhibition colours, with a slender body, large comb, and yellow skin rather than heavy dual-purpose bulk. Culinary focus is on eggs more than meat: purebred Leghorns yield small, lean carcasses best for stock when spent. Industrial white-egg hybrids descend heavily from Leghorn genetics, so supermarket eggs often carry Leghorn heritage even when the birds themselves are named hybrid strains rather than pure Leghorns.
Also known as: Livorno / Italian Leghorn, White Leghorn, Leghorn, Leghorn-derived white-egg hybrid
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Grading systems
Grades are placed along a shared scale so systems can be compared side by side.
History
Livorno-region farm fowl supplied active, white-egg layers that later became known as Leghorns abroad.
Early imports to North America established Leghorns as productive layers for expanding poultry markets.
American breeders refined White Leghorns for exhibition and high egg output under varied climates.
British and European standards distinguished Mediterranean Leghorn type from heavier northern dual-purpose breeds.
Hybrid white-egg layers based on Leghorn genetics dominated commercial egg production worldwide.
Purebred Leghorns persisted with hobbyists while commercial eggs came almost entirely from hybrid strains.