yellow beak and brown body — as the national bird. The bald eagle has appeared on the Great Seal of the United States, which is used in official documents, since 1782, when the design was finalized.

While many birds have basic brown or black bills ... nicknamed “the clown of the sea,” has a stunning beak that turns bright orange, yellow, and blue during the breeding season.

The small brown bird weighs around 16 grams (roughly half an ounce) and has black and yellow bands along with a large beak. The finding, which was reported in the science journal Nature ...