It is especially used in depictions of the bald eagle. Human activity is another reason for the decline of the bald eagle populations. However, they are smaller on average than bald eagle nests. The lake's largely undeveloped shorelines have resulted in significant concentrations of bald eagle populations. The Red Cross symbol became as well known as the bald eagle. The bald eagle appears on its seal. In 1999, twenty-six pairs of nesting bald eagle were documented. The bald eagle has a body length of . Bald eagle courtship involves elaborate, spectacular calls and flight displays. The average culmen length of the bald eagle is , thus averaging slightly smaller. The white-tailed eagle itself forms a species pair with the bald eagle. Spirit is the only Bald Eagle Auburn has used for its pregame flight program. In fact, coots may locally comprise more than 80% of the bald eagle diet. It is south of Bald Eagle Mountain, and flows from west to east. The adult bald eagle is unmistakable in its native range.