The Serama (Malay Ayam Serama), also called the Malaysian Serama is a bantam breed of chicken originating in Malaysia. They are relatively new outside Malaysia, having been recently imported to North America.
They are the lightest chicken in the world. The Serama are characterized by their vertical tail feathers, near-vertical wings, full breast, and short legs. Seramas are not yet recognized as a breed by the American Poultry Association or the American Bantam Association, but enthusiasts are working on making this so. Serama in the U.S. have been the subject of controversy with regard to what ideal type/standard should be pursued. As a result two schools of thought have emerged, the original Malaysian Standard proposed by the U.S. Serama Club, and the American standard proposed by the Serama Council of North America.source : http://en.wikipedia.org/