Macaroni penguin and giant petrels also take chicks and sick or injured adult birds. Female macaroni penguins can begin breeding at around five years of age, while the males do not normally breed until at least six years old. Females breed at a younger age because the male population is larger. The surplus of male penguins allows the female penguins to select more experienced male partners as soon as the females are physically able to breed. Commencing a few days after females arrive at the colony, sexual displays are used by males to attract partners and advertise their territory, and by pairs
The Bird with the Crystal Plumage but finds only another dead end. As he makes his way back to his apartment, Julia is attacked by the same black-gloved figure, but Sam arrives home just in time to save her and the assailant escapes. Sam starts to receive menacing phone calls from the killer, from which the police manage to isolate an odd cricketing noise in the background, which is later revealed to be the call of a rare breed of bird from Siberia, called "The Bird with Crystal Plumage" due to the diaphanous glint of its feathers. This proves important since the only one of its