Pied birds occur when scattered areas over the bird's epidermis are unable to produce melanin. Some mutations have been known to occur in the wild. There is a chance, about like winning the big prize in the lottery, that this miraculous thing will occur in your own aviary. To predict with any accuracy the colors to expect, it is well to work on obtaining some basic knowledge of bird genetics. Sex linked colors are Lutino, Cinnamon, and Albino.
Recessive colors are Blues and Pieds.
Gray is a dominant color which can occur in single factor and double factor forms. With sex linked colors the male carries two genes for color and the female only one. Many hundreds of combinations are possible with the Ringnecks. They are reliable breeders and usually make excellent parents. The new partners adjust to the change rapidly, although a cock who had a green partner the previous year may take longer to start courtship with a Blue or Lutino.