Leucistic or Black Eyed-White is a glider who is basically all white with black eyes. They sometimes have black or gray markings on their ears. Sometimes they have no coloration other than white on their ears. This color is recessive and that means both of his parents must carry the gene in order to re-produce it.
The first glider pictured is Billy Shears who has coloration on his ears. Next example is Bernie. His ears are all white.