Harpyhaliaetus
Harpyhaliaetus is a former genus of eagles. Recent studies have shown that the solitary eagle is closely related to the black-hawks, in particular the savanna hawk which is smaller and browner but otherwise very similar to Harpyhaliaetus. Therefore, this genus is now merged into that of the black-hawks.
It contained the following species:
| Image | Scientific name | Common Name | Distribution |
| Harpyhaliaetus coronatus | Chaco eagle | Argentina, Brazil, Paraguay and Bolivia | |
| Harpyhaliaetus solitarius | Solitary eagle | native to Mexico and Central and South America |