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
A Breed of Heroes A Breed of Heroes A Breed of Heroes is a 1981 novel by Alan Judd. It narrates in third person the experiences of a young British Army officer as he is deployed on his first tour of duty, a four-month operation in Armagh and Belfast at the height of The Troubles. Set in the 1970s, ‘’A Breed of Heroes’’ follows the deployment of young British Army officer Charles Thoroughgood on a four-month emergency tour of Northern Ireland. Charles is new to the army and the difficulty he has with adjusting to army life adds to the complications faced in Northern