Postage stamps and postal history of Malaysia Malacca: 5 cents yellow and 5 cents red. Negri Sembilan: 5 cents yellow and 5 cents red. Pahang: 1 cent grey, 5 cents red and 10 cents red. Penang: 5 cents yellow, 5 cents red, 5 cents blue, 5 cents blue and yellow, 6 cents yellow, 15 cents green, 15 cents black, 20 cents bright purple and 20 cents yellow. Perak: 2 cents dark green, 5 cents yellow, 10 cents red, 15 cents black, 15 cents magenta and 20 cents bright purple. Perlis: None. Sabah: 2 cents dark green. Sarawak: 1 cent grey, 2 cents black, 2 cents dark green,
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