Opinions from S. D. Emslie 1992
- 'Accipitridae belongs to Accipitriformes'
- 'Actitis belongs to Scolopacidae'
- 'Agelaius belongs to Icterinae'
- 'Anabernicula belongs to Tadornini'
- 'Anabernicula gracilenta belongs to Anabernicula'
- 'Anas belongs to Anatini'
- 'Anas albeola is recombined as Bucephala albeola'
- 'Anas americana belongs to Anas'
- 'Anas canadensis is recombined as Branta canadensis'
- 'Anas clypeata belongs to Anas'
- 'Anas collaris belongs to Anas' according to Donovan 1809
- 'Anas collaris is recombined as Aythya collaris'
- 'Anas crecca belongs to Anas'
- 'Anas cyanoptera belongs to Anas'
- 'Anas discors belongs to Anas'
- 'Anas valisineria is recombined as Aythya valisineria'
- 'Anatidae belongs to Anseriformes'
- 'Anatinae belongs to Anatidae'
- 'Anatini belongs to Anatinae'
- 'Anserinae belongs to Anatidae'
- 'Anserini belongs to Anserinae'
- 'Ardea belongs to Ardeidae'
- 'Ardea canadensis is recombined as Grus canadensis'
- 'Ardea exilis is recombined as Ixobrychus exilis'
- 'Ardea lentiginosa is recombined as Botaurus lentiginosus'
- 'Ardea violacea is recombined as Nycticorax violaceus'
- 'Ardeidae belongs to Ciconiiformes'
- 'Aythya belongs to Aythyini'
- 'Aythyini belongs to Anatinae'
- 'Botaurus belongs to Ardeidae'
- 'Branta belongs to Anserini'
- 'Bucephala belongs to Mergini'
- 'Ciconia maltha belongs to Ciconia'
- 'Ciconiidae belongs to Ciconiiformes'
- 'Colymbus podiceps is recombined as Podilymbus podiceps'
- 'Dendrocygna belongs to Dendrocygninae'
- 'Dendrocygninae belongs to Anatidae'
- 'Egretta belongs to Ardeidae'
- 'Emberizidae belongs to Passeriformes'
- 'Eudocimus belongs to Plataleidae'
- 'Fulica belongs to Rallidae'
- 'Fulica americana belongs to Fulica'
- 'Fuligula affinis is recombined as Aythya affinis'
- 'Fuligula americana is recombined as Aythya americana'
- 'Gallinago belongs to Scolopacidae'
- 'Gruidae belongs to Gruiformes'
- 'Grus belongs to Gruidae'
- 'Gymnogyps belongs to Vulturidae'
- 'Helonetta belongs to Anatinae'
- 'Helonetta brodkorbi belongs to Helonetta'
- 'Himantopus belongs to Recurvirostridae'
- 'Icteridae was reranked as the subfamily Icterinae and belongs to Emberizidae'
- 'Ixobrychus belongs to Ardeidae'
- 'Laterallus belongs to Rallidae'
- 'Limnodromus belongs to Scolopacidae'
- 'Meleagris belongs to Phasianidae'
- 'Mergini belongs to Anatinae'
- 'Mergus belongs to Mergini'
- 'Mergus merganser belongs to Mergus'
- 'Mergus serrator belongs to Mergus'
- 'Nycticorax belongs to Ardeidae'
- 'Oriolus phoeniceus is recombined as Agelaius phoeniceus'
- 'Oxyura belongs to Mergini'
- 'Oxyura hulberti belongs to Oxyura'
- 'Oxyurinae was reranked as the tribe Oxyurini and belongs to Anatinae'
- 'Phalacrocoracidae belongs to Pelecaniformes'
- 'Phalacrocorax belongs to Phalacrocoracidae'
- 'Phasianidae belongs to Galliformes'
- 'Phoenicopteridae belongs to Charadriiformes'
- 'Phoenicopterus belongs to Phoenicopteridae'
- 'Plataleidae belongs to Ciconiiformes'
- 'Podicipedidae belongs to Podicipediformes'
- 'Podilymbus belongs to Podicipedidae'
- 'Porphyrula belongs to Rallidae'
- 'Rallidae belongs to Gruiformes'
- 'Rallus belongs to Rallidae'
- 'Rallus elegans belongs to Rallus' according to Audubon 1834
- 'Rallus limicola belongs to Rallus' according to Vieillot 1819
- 'Rallus limicola belongs to Rallus'
- 'Rallus longirostris belongs to Rallus' according to Boddaert 1783
- 'Rallus longirostris belongs to Rallus'
- 'Recurvirostridae belongs to Charadriiformes'
- 'Scolopacidae belongs to Charadriiformes'
- 'Scolopax belongs to Scolopacidae'
- 'Spizaetus belongs to Accipitridae'
- 'Tadorini belongs to Tadorninae'
- 'Tadorninae belongs to Anatidae'
- 'Tringa belongs to Scolopacidae'
- 'Tringa macularia belongs to Tringa' according to Linnaeus 1766
- 'Tringa macularia is recombined as Actitis macularia'
- 'Vulturidae belongs to Ciconiiformes'