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Note on a sex-linked down character in ducks


A cross between the Mallard and the Indian Runner duck has brought to light a sex-linked character affecting the colour of the down. The evidence available suggests that the structural differences in the two breeds depend upon several factors. The Mallard’s instincts towards flight and towards broodiness are dominant in theF 1 birds.

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  1. Much information on the Mstory of the Runner duck will be found inThe Indian Runner Duck, by J. A. Coutts, a small work published byThe Feathered World, 7 Arundel Street, London. It is undated but appeared about 1926.


  1. SeeNature, 15 November, 1930.

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Punnett, R.C. Note on a sex-linked down character in ducks. Journ. of Genetics 25, 191–194 (1932).

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  • Mallard Duck
  • Poultry Breeding
  • Light Type
  • Extensive Breeding
  • Eastern Origin