The adult Crowned Solitary Eagle can measure anywhere from 75-85cm head to tail. Its’ body is entirely covered by a distinct dull silver grey color. The grey becomes a darker almost black pigment towards the wing tips. The short stubby tail has a distinct thick white band through the center and white covers the tips of the tail feathers. Most prominently, there is an erect extension of crown feathers that contributes to the name crowned eagle. The legs and proximal part of the beak are a yellow color. The immature bird is a brown grey with a lighter cream color head, throat, and belly (Birdlife International 2008).