The golden eagle lacks the baffles or 'jet cones' in a peregrine's nose, probably because golden eagles don't dive as fast as falcons do. It also helps protect the young eagle's eye from scratches administered by struggling prey animals. This membrane protects and moistens a bird's eye while allowing it to see. Look at that face! The nictitating membrane found in all birds is clearly visible. The eagle's nictitating membrane protects its eye We can confidently say that they have a larger wingspan than bald eagles: North American golden eagle wingspans range from 6 feet to 7.2 feet according to Animal Diversity Web. Confusing the issue even further, golden eagles (unlike bald eagles) don't appear to follow Bergmann's rule: one study found that golden eagles in Idaho were larger than those from Alaska. Although bald eagles are a little bit longer on average than golden eagles (34 inches in length versus 33 inches in length), the difference is small enough that some golden eagles will be longer than some bald eagles. Overall size is a complicated issue - while American gold eagles tend to be smaller than their counterparts in Eurasia, the largest gold eagle ever recorded was a female banded and released in Wyoming in 2006. They range from 26 to 40 inches in length. Adult American gold eagles are otherwise dark (or chocolate) brown in plumage, with 'marbled' flight feathers on their wing and tail.
Golden eagles get their name from the golden or tawny wash of feathers on their head and neck feathers. Viewers were treated to amazing views of the eagle's golden feathers, large talons, nictitating eyelids, and overall plumage. But on August 31, an immature eagle decided to show up in camera range. Eaglecrest's nesting golden eagles normally appear only at a distance.
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