How does the chest coloration of juvenile Hoiho differ from adults?
Answer
Juveniles have a duller greyish-white chest
Age significantly influences the visual appearance of the Yellow-Eyed Penguin's ventral side. While adult birds display a clean, contrasting white on their chest, belly, and throat, juvenile birds possess a chest coloration that is distinctly duller, described as greyish-white. Furthermore, chicks and immature birds lack the crucial distinguishing feature of the adults—the clear yellow eye-ring—making their plumage less vivid overall until they reach full sexual maturity.
Related Questions
What is the Māori name for the Yellow-Eyed Penguin?What is the typical height range for adult Yellow-Eyed Penguins?What physical feature is described as the most defining characteristic of the Hoiho?What color are the dorsal feathers of the adult Hoiho?How does the chest coloration of juvenile Hoiho differ from adults?What feature do Yellow-Eyed Penguins lack compared to penguins in the genus *Eudyptes*?Which physical adaptation reflects the Hoiho's use of dense coastal shrubbery for nesting?How do the average weights of male and female Yellow-Eyed Penguins typically compare?How is the arc of yellow feathers extending from the Hoiho's eye sometimes described?In comparison to other penguins of similar size, what is notable about the Hoiho's bill?