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 (horse) Macaroni's victory was warmly received in Newmarket, where the church bells were rung in celebration. Naylor marked his success by donating £1,000 to charities in his native city of Liverpool. In July, Macaroni ran the Drawing Room Stakes at Goodwood. He was made odds-on favourite despite a ten pound weight penalty an won easily from two opponents. At York in August, he took on older horses in the two-mile York Cup and won by four lengths from Clarissimus. At Doncaster in September, Macaroni bypassed the St Leger and ran instead in the two-and-a-half mile Doncaster Cup. He took the lead