Large dark brown eagle. Like most other Aquila eagles prefers open areas including farmland, steppelands, meadows, and open wooded areas. Difficult to distinguish from other Aquila eagles in the area. Dark adult is similar to both Greater and Lesser Spotted Eagles, but Steppe Eagle averages larger and with streaked primaries. Immature is sandier brown with strikingly pale primary and secondary underwing coverts that appear as a broad white line separating a dark outer and inner wing; immature Imperial Eagles lack this distinct stripe. Tawny Eagles are also very similar, but have a bright yellow gape line that extends to the middle of the eye whereas the gape only extends to the back of the eye on immature Steppe Eagles. Tawny Eagles are also lighter with less distinct barring on the flight feathers. Long, broad square-ended wings with prominent fingers distinguish this species from large buzzards.