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|Recessive Opal Bar (with recessive opal grizzle in background).|
|Common name||Recessive opal|
|Mutation type||Colour modifier|
|Commonly found in breeds such as:||Racing homer|
Recessive opal is an autosomal recessive mutation. This means that both parents need to carry the mutant gene for it to express in the next generation. As a recessive mutation, it is possible for this trait to be carried by a bird who does not visually express it.
Dominant opal - a visually similar but unrelated trait.