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
Pointer (dog breed) it is often simply referred to as the "bird dog," Pointers are found in abundance. The bobwhite quail is the primary game bird there, and is considered classic English Pointer game, as the bobwhite will hold well for a pointing dog. Pointers also work game birds such as the pheasant, grouse, and woodcock with success. While the dog is often called the "English Pointer" colloquially, the official breed name according to the British Kennel Club is simply "Pointer". The same is true of the Fédération Cynologique Internationale, the American Kennel Club, and the Field Dog Stud Book. The first Pointer