You will also find an explanation of the law that limits the amount a physician can charge a Medicare beneficiary for covered services. But first, here are some basic facts about Medicare. The Two Parts of Medicare Medicare has two parts -- Hospital Insurance (Part A) and Supplementary Medical Insurance (Part B).
Many color mutations of Gouldian Finches have been bred. Mutation of body color influences the phenotype of head color. Inheritance of the mutations is the same as in naturally colored specimens. Therefore we may speak of red-headed green, blue or silver, even though phenotypically the coloring is different.
I am not certain about other Finches but as a rule the American Gold Finch tends to stay in the same region year around however they undergo a rather remarkable color change from summer to winter. In their summer or Breeding Plumage the males are bright yellow with black wings and are commonly called wild canaries.