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|Mutation type||Colour modifier|
Drizzle (symbol Drz) is a dominant mutation located at the Drz locus.
Drizzle is an autosomal dominant mutation. This means that only one parent of either sex needs to carry the mutant gene for it to express in the next generation. Unless it is hidden by another modifier, a pigeon not expressing this trait will not pass it onto its children.
Anthracite - a similar trait that may be the same mutation as drizzle.