When the RFFSA began to repaint its locomotives of both Metric and Irish Gauges in Ash Grey and Lemon Yellow ( 1994 1996 ), the numbers were relocated towards the radiator section of the locomotive.
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RFFSA President Renato Almeida chose Cavalieri's Ash Grey and Lemon Yellow design based on the factors of a good way to promote the company systemwide and the simplicity of cost saving graphics / paint for easy application.
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It is similar to " Manduca armatipes ", but the abdomen is ash grey dorsally, the abdomen is white with two medial black spots ventrally, the forewing upperside is less heavily marked, the subbasal white spots are less prominent and the discal spot is smaller and less prominent.
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It is 18 19 cm in size, and weighs 32-40 grams . It has a blue grey beak with a black tip and a black face mask which extends from the base of the bill to around the eyes . It has ash grey plumage, which is lighter around the breast with darker wings, and silver underwings . It has a black tail with a white tip . There are four different subspecies of back faced wood swallows . These are differentiated by black or white colouration of their tail vents . The white vented subspecies A . c . normani and A . c . dealbatus are found on the Cape York Peninsula and northern Queensland respectively . The black vented A . c . cinereus occurs in south west Australia, while A . c . melanops ccurs in northern Australia and Lesser Sunda Islands including Timor.
