| | | | | | Photo Gallery | | | |  |  |  | | | | | The pearl mutation, which is sex-linked, removes the melanin from the centers of all grey feathers, giving the affected plumage a "scalloped" appearance.
A whiteface pearl's feathers will have white centers rather than yellow ones. | | |
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This mutation can be combined with others to change the appearance of the pearl markings; a whiteface cinnamon pearl, for example, will have a soft, pale brown edgings on the scalloped feathers. Whiteface is a recessive mutation. | | |
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