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Message: <blockquote data-quote="CAU" data-source="post: 1255796" data-attributes="member: 55324">Ok, you're correct, I missed that part.The Wikipedia articles define albinism as a lack of melanin only. Although I don't know how trustworthy they are.<a href="http://en.wikipedia.org/wiki/Albinism" target="_blank">http://en.wikipedia.org/wiki/Albinism</a><a href="http://en.wikipedia.org/wiki/Leucism" target="_blank">http://en.wikipedia.org/wiki/Leucism</a>"Albinism is ... characterized by a partial ... or total ... lack of melanin pigment ...""In some animals, especially albinistic birds and reptiles, ruddy and yellow hues or other colors may be present on the entire body or in patches (as is common among pigeons), due to the presence of other pigments unaffected by albinism such as porphyrins, pteridines and psittacins, as well as carotenoid pigments derived from the diet.""Leucism is a condition characterized by reduced pigmentation in animals. Unlike albinism, it is caused by a reduction in all types of skin pigment, not just melanin."Edit: Another link says this:"Lucas and Stettenheim (1972) point out that a genetically complete albino could still have highly colored feathers if a pigment other than melanin were present."Lucas, A. M., and P. R. Stettenheim.  1972.  Avian Anatomy Integument Part II. U.S. Department of Agriculture Handbook 362. Washington, D. C. <a href="http://www.birds.cornell.edu/ivory/pastsearches/2005_2006/stories_reports_0506/leucism" target="_blank">http://www.birds.cornell.edu/ivory/pastsearches/2005_2006/stories_reports_0506/leucism</a></blockquote>

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