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 and cheese with bread crumbs or crushed crackers, which also keeps the noodles on top from drying out when baking. One novelty presentation is deep-fried macaroni and cheese found at fairs and food carts. In Scotland, macaroni and cheese can often be found incorporated into a pastry shell, known as a macaroni pie. Macaroni and cheese pizza can be found on recipe web sites and US restaurant menus, such as Cici's Pizza. A similar traditional dish in Switzerland is called (Alpine herder's macaroni), which is also available in boxed versions. "Älplermagronen" are made of macaroni, cream, cheese, roasted onions, and in some