Olympic symbols the idea" that the Olympic Movement is international and welcomes all countries of the world to join. As can be read in the Olympic Charter, the Olympic symbol represents the union of the "five continents" of the world and the meeting of athletes from throughout the world at the Olympic Games. However, no continent is represented by any specific ring. Prior to 1951, the official handbook stated that each colour corresponded to a particular continent: blue for Europe, yellow for Asia, black for Africa, green for Australia and Oceania, and red for the Americas; this was removed because there was
Yellow-tailed black cockatoo is a more solid brown-black in the eastern subspecies, while the southern race has more pronounced yellow scalloping on the underparts. The male yellow-tailed black cockatoo has a black bill, a dull yellow patch behind each eye, and pinkish or reddish eye-rings. The female has grey eye-rings, a horn-coloured bill, and brighter and more clearly defined yellow cheek-patches. Immature birds have duller plumage overall, a horn-coloured bill, and grey eye-rings; The upper beak of the immature male darkens to black by two years of age, commencing at the base of the bill and spreading over ten weeks. The lower beak