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,
Budgerigar colour genetics from oranges, peaches, pinks to reds. When these feathers are exposed to a white light source, such as sunlight, only the blue part of the spectrum is reflected by the eumelanin granules. This reflected blue light passes through the yellow pigment layer, resulting in the green colouration known as "lightgreen" in only the budgerigar and/or "green" in any other naturally green coloured parrot species. The many colour variations of budgerigars, such as albino, blue, cinnamon, Clearwinged, the various Fallows, Grey, Greygreen, Greywing, Lutino, Mauve, Olive, Opaline, Spangled, Suffused and Violet are the result of mutations that have occurred within specific