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Mosaic Feathering Makes Striations More Pronounced
Mosaic Feathering changes a birds appearance whether crested or non-crested. It makes their penciling-like striations wider and distinct on the head, on the back, and on the flanks. It also results in white feathering in the vent area.
Checking for a white area in the vent is a good way to know if mosaic genes are present. Although a white vent is expected in a mosaic, if a bird is being shown as a non-mosaic bronze for example, it is a fault if it has a white vent.