Macaroni penguin female are similar in appearance; males tend to be slightly larger. Males also bear relatively larger bills, which average around compared to in females; this feature has been used to tell the sexes apart. Immature birds are distinguished by their smaller size, smaller, duller-brown bill, dark grey chin and throat, and absent or underdeveloped head plumes, often just a scattering of yellow feathers. The crest is fully developed in birds aged three to four years, a year or two before breeding age. Macaroni penguins moult once a year, a process in which they replace all of their old feathers. They
Macaroni Cury" which records the earliest recipe for macaroni cheese. The word later came to be applied to overdressed dandies and was associated with foppish Italian fashions of dress and periwigs, as in the eighteenth-century British song "Yankee Doodle". The Russian language borrowed the word (as ) as a generic term for all varieties of pasta; this also holds for several other Slavic languages, as well as for Turkish, Greek, and Brazilian Portuguese. In Iran, all sorts of pasta are collectively called "makaroni". As is the case with dishes made with other types of pasta, macaroni and cheese is a popular