sentences:  Meanwhile, females may range in wing chord length from , in tail length from and in tarsus length from .In general, compared to other species in their taxonomic group, the eastern imperial eagle has a relatively long and thick neck, a big head and bill (with a gape line level with middle of eye), a longish square tipped tail, somewhat long and well-feathered legs and strong feet.The species tends to perch in a fairly upright position often on rather exposed tree branch or low mound, rock, haystack or similar convenient site.