The color change from juvenile to adult offers bald eagles advantages in camouflage, communication, attracting mates, and intimidating rivals. Learning about how and why bald eagles acquire their majestic adult colors provides fascinating insights into raptor development, physiology, and behavior. This article describes the age and plumages that juvenile and immature bald eagles go through before attaining the adult plumage.
Bald Eagle Appearance It's pretty cool to know what a bald eagle really looks like, whether you're a bird fanatic or just fascinated by these awesome creatures. So, let's chat about how they change colors as they grow up and highlight their signature look. Color Changes Over Age Bald eagles go through a bit of a color journey as they mature, with four main stages: baby, year two, year.
Bald eagles are one of the most striking birds in North America, known for their majestic appearance. You might wonder why these beautiful creatures change colors throughout their lives. The color change in bald eagles is mainly due to the different feather pigments produced as they mature.
Bald Eagle appearance as it matures. Image courtesy of Avian Report Beginning at about six months of age, the juvenile Bald Eagle turns a lighter brown with more white flecking. After the first year, coloring changes are variable as the eagle goes through its first molt, which is a shedding and renewal of feathers.
A practiced eye can identify the age of a young Bald Eagle based on their plumage and eye and beak color. Once the eagles mature in their fifth year, their classic Bald Eagle appearance doesn't change for the rest of their life and it's nearly impossible to tell how old they are from outward appearances. The "bald" eagle got its name from the Middle English word "balde" which means white-headed (not hairless!).
"Golden" eagles likely got their name from the top and back of their head and neck, which are a beautiful golden color. Bald eagle eyes also change color with age. From the dark eyes of a hatchling and juvenile, the iris progressively lightens to light brown, then cloudy yellow, and eventually bright yellowish.
Plumage refers both to the layer of feathers that cover a bird and the pattern, color, and arrangement of those feathers. In their five year development to adulthood, bald eagles go through one of the most varied plumage changes of any North American bird. 2013, adult, bald eagle, beak color, blown eye, eagle watching, eye color, eye stripe, farmington bay, Farmington Bay Wildlife Management Area, golden eagle, great salt lake, haliaeetus leucocephalus, immature, juvenile, plumage stages, sub-adult, utah.