Sir John Saunders Sebright (1767–1846) was the 7th Sebright Baronet, and a Member of Parliament for Hertfordshire. In addition to breeding chickens, cattle and other animals, Sir John wrote several influential pamphlets on animal keeping and breeding: The Art of Improving the Breeds of Domestic Animals (1809), Observations upon Hawking (1826), and Observations upon the Instinct of Animals (1836).

Charles Darwin read Sir John's 1809 pamphlet, and was impressed with a passage that elaborated on how "the weak and the unhealthy do not live to propagate their infirmities". These writings, along with Darwin's correspondence via their mutual friend William Yarrell, aided Darwin in the inception of Darwin's theory of natural selection. Darwin's seminal work On the Origin of Species, first published in 1859, cited Sir John's experiments in pigeon breeding, and recalled "That most skilful breeder, Sir John Sebright, used to say, with respect to pigeons, that 'he would produce any given feather in three years, but it would take him six years to obtain head and beak.'" Darwin also cited Sir John extensively regarding the Sebright bantam, as well as pigeon and dog breeding, in his 1868 work Variation of Plants and Animals Under Domestication, his 1871 The Descent of Man, and Selection in Relation to Sex, and his book on Natural Selection (which was not published in his lifetime).

Sebright set out to create a very small bantam chicken with laced plumage similar that of the laced Polish. Although the exact makeup of the breed is uncertain, it is thought that he created the gold Sebright by cross-breeding a buff Nankin bantam hen, a small gold-spangled Hamburgh-like hen and a small hen-feathered Pit Game cock; he later created the silver Sebright by crossing his golds with a white Rosecomb cock bought from the new Zoological Gardens of the Zoological Society of London, established in 1826. It is also possible that the hen-feathering characteristic derived from the Belgian Campine breed rather than from Pit Game. In about 1810, Sebright founded The Sebright Bantam Club, which was the first single-breed association for chickens. In 1853 the Sebright was described in the Poultry Book of William Wingfield and George William Johnson, with an illustration by Harrison Weir. It was included in the original Standard of Excellence in Exhibition Poultry of William Bernhard Tegetmeier in 1865, and in the first Standard of Perfection of the American Poultry Association in 1874. Today, the breed is one of the ten most popular bantam chickens, according to the American Bantam Association.

• List of chicken breeds
• Pigmy Pouter (An English breed of fancy pigeon believed to also be developed by Sir John Sebright though the subject is debatable)
• Campine (chicken) A small breed of chicken that also comes in gold and silver variants; is often compared to the Sebright.
• Hen feathering in cocks

199 ^ Sebright. Rare Breeds Survival Trust. Accessed January 2019.
299 ^ "Chooks - Rare Breeds List". rarebreeds.co.nz. Rare Breeds Conservation Society of New Zealand. Retrieved 16 December 2014.
399 ^ "Status of Rare Breeds of Domestic Farm Livestock in Australia 2004" (PDF). rbta.org. Rare Breeds Trust of Australia. Archived from the original (PDF) on 11 April 2014. Retrieved 16 December 2014.
499 ^ Victoria Roberts (2008). British poultry standards: complete specifications and judging points of all standardized breeds and varieties of poultry as compiled by the specialist breed clubs and recognised by the Poultry Club of Great Britain. Oxford: Blackwell. ISBN 9781405156424.
599 ^ APA Recognized Breeds and Varieties: As of January 1, 2012. American Poultry Association. Archived 4 November 2017.
699 ^ Liste des races et variétés homologuée dans les pays EE (28.04.2013). Entente Européenne d’Aviculture et de Cuniculture. Archived 16 June 2013.
799 ^ Breed Classification. Poultry Club of Great Britain. Archived 30 June 2017.
899 ^ Chickens: True Bantam. Poultry Club of Great Britain. Archived 27 October 2018.
999 ^ Hobson, Jeremy and Lewis, Cecilia. Choosing & Raising Chickens: The complete guide to breeds and welfare. David and Charles publishing. London. 2009. p 85.
1099 ^ Lee p. 1108
1199 ^ Sir John Sebright (1826). Observations upon Hawking. London" J. Harding.
1299 ^ Ekarius p. 152
1399 ^ "Letter 613 Darwin, C. R. to Yarrell, William, [5 or 12 Sept 1842]". Darwin Correspondence Project. Archived from the original on 28 July 2012. Retrieved 12 April 2008.
1499 ^ Darwin 1859, p. 20.
1599 ^ Darwin 1859, p. 31.
1699 ^ "The Complete Work of Charles Darwin Online". Retrieved 11 April 2008.
1799 ^ Christopher Parker (October 2018). Sebrights. Aviculture Europe. 14 (5), section 3. Archived 16 January 2019.
1899 ^ Graham p. 144
1999 ^ William Wingfield, George William Johnson, Harrison Weir (illustrator) (1853). The Poultry Book: comprising the characteristics, management, breeding and medical treatment of Poultry. London: Wm. S. Orr and Co.
2099 ^ William Bernhard Tegetmeier (editor). The Standard of Excellence in Exhibition Poultry, authorized by the Poultry Club. London: Groombridge and Sons, for the Poultry Club, 1865.
2199 ^ Ekarius p. 153

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