"Aquila minuta" redirects here. If based on Brehm (1831), it refers to this bird. The fossil bird described under the same name by Milne-Edwards (1871) is preliminarily known as "Hieraaetus" edwardsi but might belong in Aquila. The booted eagle (Hieraaetus pennatus, also classified as Aquila pennata) is a medium-sized bird of prey. It is about 46 cm (18 in) in length and has a wingspan of 120 cm (47 in). Like all eagles, it belongs to the family Accipitridae.