Opinions from D. Amadon 1977
- 'Aegypiidae is a subjective synonym of Accipitridae'
- 'Aegypius belongs to Accipitridae'
- 'Cathartae belongs to Falconiformes'
- 'Cathartes belongs to Cathartinae'
- 'Cathartes burrovianus belongs to Cathartes' according to Cassin 1845
- 'Cathartes burrovianus belongs to Cathartes'
- 'Cathartes melambrotus belongs to Cathartes' according to A. Wetmore 1964
- 'Cathartes melambrotus belongs to Cathartes'
- 'Cathartidae belongs to Cathartae'
- 'Cathartinae belongs to Cathartidae'
- 'Coragyps belongs to Cathartinae'
- 'Gymnogyps belongs to Cathartinae'
- 'Gypaetus belongs to Accipitridae'
- 'Gypohierax belongs to Accipitridae'
- 'Gyps belongs to Accipitridae'
- 'Harpia belongs to Accipitridae'
- 'Necrosyrtes belongs to Accipitridae'
- 'Neocathartes belongs to Cathartae'
- 'Neophron belongs to Accipitridae'
- 'Pseudogryphus is a subjective synonym of Gymnogyps'
- 'Sarcogyps is a subjective synonym of Aegypius'
- 'Sarcoramphus belongs to Cathartinae'
- 'Sarcorhamphi is a subjective synonym of Cathartae'
- 'Teratornithidae was reranked as the subfamily Teratornithinae and belongs to Cathartidae'
- 'Torgos is a subjective synonym of Aegypius'
- 'Trigonoceps is a subjective synonym of Aegypius'
- 'Vultur belongs to Cathartinae'
- 'Vultur aura is recombined as Cathartes aura'
- 'Vultur barbatus is recombined as Gypaetus barbatus' according to Storr 1784
- 'Vultur barbatus is recombined as Gypaetus barbatus'
- 'Vultur californianus belongs to Vultur' according to Shaw 1797
- 'Vultur californianus is recombined as Gymnogyps californianus' according to Lesson 1842
- 'Vultur californianus is recombined as Gymnogyps californianus'
- 'Vultur californianus is recombined as Pseudogryphus californianus' according to Ridgway 1874
- 'Vultur gryphus belongs to Vultur'
- 'Vultur harpyja is recombined as Harpia harpyja' according to Vieillot 1816
- 'Vultur harpyja is recombined as Harpia harpyja'
- 'Vultur papa is recombined as Sarcoramphus papa' according to Duméril 1805
- 'Vultur papa is recombined as Sarcoramphus papa'
- 'Vultur percnopterus is recombined as Neophron perenopterus' according to Savigny 1809
- 'Vultur percnopterus is recombined as Neophron perenopterus'
- 'Vulturidae is a subjective synonym of Cathartidae'