1Australian Any large bird of prey; especially the wedge-tailed eagle, Aquila audax.
2Any of various birds of prey; especially any of the hawk eagles (genus Spizaetus and related genera). Now chiefly historical.
The name was originally used for birds of the genus Morphnus of Cuvier, most of which have been reassigned to other genera.
Late 18th century (in an earlier sense). From eagle + hawk.