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Breed of chicken that originated in Italy; the only Mediterranean breed of importance today. Of the 12 varieties, the single-comb white leghorn is more popular than all the other leghorns combined; the leading egg producer of the world, it lays white eggs and is kept in large numbers in England, Canada, Australia, and the U.S.
This entry comes from Encyclopædia Britannica Concise. For the full entry on leghorn, visit Britannica.com.