
In these birds, the feather pigments are absent, resulting in all-white plumage. Depending on the birds they are derived from or crossed with, some may have faint grey markings on the head and breast. The red beak and legs stand out in contrast. Some whites are not whites at all, but Pied finches that have had all their colour bleached out.
Males have a dark red beak, while the females have a paler beak.