The chick is born in late spring or early summer and does not leave until it is about one year old. Chinstrap Penguins Similar to northern part of Adelies' range, inc. The Chinstraps derive their common name from a narrow black stripe running down the otherwise white chin. The Gentoo can be distinguished from the Adelie by its yellow bill and the white band across the top of its head that joins both eyes. Prior to this, males will often court females by bringing them a pebble.
Incubation takes about one month.
Adults still only feed their own chicks, whom they recognise by voice. After another month the chicks shed their down for an immature plumage, start swimming and feeding themselves, and leave their parents, who also molt at this time. Young adelies do not breed until their third year at the earliest and often not until the fifth or even eighth. Quite distinctive in appearance, as the back heads are diffused with yellow, notably the cheeks and top of the head. There is also a yellow band that runs around the back of the head and joins both eyes, forming a small circle around them.