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) hour, owing to a record thirty-two false starts caused by horses breaking away or failing to line up correctly. The huge field led to good deal of bumping and roughness, with three horses either falling or being brought down. Chaloner held up Macaroni in the early stages, before moving into fifth place entering the straight. A furlong from the finish, Lord Clifden went into a clear lead and looked the likely winner, but Macaroni produced a strong late run to catch the favourite in the last strides and win by a head. Rapid Rhone finished well to take third place.