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 salad from supermarket delis. In the Philippines, macaroni salad has a mildly sweet flavor. It is commonly consumed during holidays such as Christmas and New Years day. A common variant adds shredded chicken and is known as chicken salad or chicken macaroni salad. It is served at parties and gatherings. In the United States, macaroni salad has been described as a "deli staple". In Hawaii, macaroni salad is a popular staple in plate lunches. In Puerto Rico macaroni salad may contain mayonnaise, mustard, canned tuna or bits of Spam, onions, Cubanelle peppers and pimentos. Macaroni salad Macaroni salad is a type