 Food can be scarce in winter and ants are an important 'last resort' option, constituting a much higher proportion of the diet.Adult fairywrens feed their young a different diet, conveying larger items such as caterpillars and grasshoppers to nestlings.The bird was intended to be illustrated on an Australia Post 45c pre-stamped envelope released on 12 August 1999; however, a superb fairywren was mistakenly illustrated instead.