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) was a very good racehorse, being unbeaten in sixteen races in 1845. In addition to Macaroni, he sired The Oaks winners Mincemeat and Mincepie as well as Parmesan who sired the Derby winners Favonius and Cremorne. In 1862, the best of Naylor’s two-year-olds was reckoned to be a colt named Carnival, while Macaroni was very backward and slow to mature. He ran only once, in autumn at Newmarket and gave little grounds for optimism as he was beaten three-quarters of a length by Automaton, his only opponent in a two horse race. Naylor however, had a great belief in the