sentences:  The only species in the genus "Aquila" that exceeds the golden eagle in average wingspan and length is the wedge-tailed eagle of Australasia; however, the wedge-tailed eagle is a slightly less heavy bird.This species was first described by Linnaeus in his 1758 "Systema naturae" as "Falco chrysaetos".Since birds were grouped largely on superficial characteristics at that time, many species were grouped by Linnaeus into the genus "Falco".