Opinions from P. Brodkorb 1964
- 'Alopochen belongs to Plectropterinae'
- 'Anabernicula belongs to Tadorninae'
- 'Anabernicula gracilenta belongs to Anabernicula'
- 'Anas belongs to Anatinae'
- 'Anas (Nettium) strenua is recombined as Nettion strenua'
- 'Anas atava belongs to Anas' according to Fraas 1870
- 'Anas atava is recombined as Anser atavus'
- 'Anas basaltica belongs to Anas' according to Bayer 1883
- 'Anas basaltica belongs to Anas'
- 'Anas blanchardi belongs to Anas' according to Milne-Edwards 1863
- 'Anas blanchardi belongs to Anas'
- 'Anas consobrina belongs to Anas' according to Milne-Edwards 1867
- 'Anas consobrina belongs to Anas'
- 'Anas cygniformis belongs to Anas' according to Fraas 1870
- 'Anas cygniformis is recombined as Anser cygniformis'
- 'Anas elapsa belongs to Anas' according to De Vis 1888
- 'Anas elapsa is recombined as Nettion elapsum'
- 'Anas eppelsheimensis is recombined as Nettion eppelsheimense'
- 'Anas finschi is recombined as Euryanas finschi'
- 'Anas gracilipes is recombined as Nettion gracilipes'
- 'Anas isarensis belongs to Anas'
- 'Anas itchtucknee belongs to Anas'
- 'Anas lignitifila belongs to Anas'
- 'Anas luederitzensis belongs to Anas' according to Lambrecht 1929
- 'Anas luederitzensis belongs to Anas'
- 'Anas natator belongs to Anas' according to Milne-Edwards 1867
- 'Anas natator is recombined as Querquedula natator'
- 'Anas oeningensis is recombined as Anser oeningensis'
- 'Anas oligocaena belongs to Anas' according to Tugarinov 1940
- 'Anas oligocaena belongs to Anas'
- 'Anas pachyscelus belongs to Anas'
- 'Anas risgoviensis belongs to Anas' according to von Ammon 1918
- 'Anas risgoviensis belongs to Anas'
- 'Anas robusta belongs to Anas' according to Milne-Edwards 1867
- 'Anas robusta belongs to Anas'
- 'Anas sansaniensis belongs to Anas' according to Milne-Edwards 1867
- 'Anas sansaniensis belongs to Anas'
- 'Anas skalicensis belongs to Anas' according to Bayer 1882
- 'Anas skalicensis belongs to Anas'
- 'Anas theodori belongs to Anas'
- 'Anas velox belongs to Anas' according to Milne-Edwards 1867
- 'Anas velox is recombined as Nettion velox'
- 'Anatidae belongs to Anseres'
- 'Anatinae belongs to Anatidae'
- 'Anser belongs to Anserinae'
- 'Anser anatoides belongs to Anser' according to Depéret 1890
- 'Anser anatoides is recombined as Nettapus anatoides'
- 'Anser azerbaidzhanicus belongs to Anser' according to Serebrovsky 1940
- 'Anser azerbaidzhanicus belongs to Anser'
- 'Anser condoni is a subjective synonym of Cygnus paloregonus'
- 'Anser scaldii belongs to Anser'
- 'Anseranatidae was reranked as the subfamily Anseranatinae and belongs to Anatidae'
- 'Anseres belongs to Anseriformes'
- 'Anserinae belongs to Anatidae'
- 'Archaeocycnus lacustris is recombined as Cygnus lacustris'
- 'Archeoquerquedula is a subjective synonym of Querquedula'
- 'Archeoquerquedula lambrechti belongs to Archeoquerquedula' according to Spillman 1942
- 'Archeoquerquedula lambrechti is recombined as Querquedula lambrechti'
- 'Aythya belongs to Aythyinae'
- 'Aythyini was reranked as the tribe Aythyinae and belongs to Anatidae'
- 'Biziura belongs to Oxyurinae'
- 'Biziura exhumata belongs to Biziura'
- 'Branta belongs to Anatinae'
- 'Branta dickey is corrected as Branta dickeyi and belongs to Branta'
- 'Branta esmeralda belongs to Branta' according to Burt 1929
- 'Branta esmeralda belongs to Branta'
- 'Branta howardae belongs to Branta' according to Miller 1930
- 'Branta howardae belongs to Branta'
- 'Branta minuscula is recombined as Anabernicula miniscula'
- 'Branta propinqua belongs to Branta'
- 'Brantadorna belongs to Tadorninae'
- 'Brantadorna downsi belongs to Brantadorna'
- 'Bucephala belongs to Merginae'
- 'Bucephala fossilis belongs to Bucephala'
- 'Bucephala ossivallis belongs to Bucephala'
- 'Centrornis belongs to Plectropterinae'
- 'Cereopsinae belongs to Anatidae'
- 'Chen pressa is recombined as Anser pressus'
- 'Chenalopex debilis belongs to Chenalopex' according to Ameghino 1891
- 'Chenalopex debilis is recombined as Neochen debilis'
- 'Chenalopex pugil belongs to Chenalopex' according to Winge 1887
- 'Chenalopex pugil is recombined as Neochen pugil'
- 'Chenalopex sirabensis is recombined as Alopochen sirabensis'
- 'Chendytes belongs to Merginae'
- 'Chendytes lawi belongs to Chendytes'
- 'Chendytes milleri belongs to Chendytes'
- 'Chenopis nanus is a subjective synonym of Cygnus lacustris'
- 'Chenopis sumnerensis belongs to Chenopis' according to Forbes 1889
- 'Chenopis sumnerensis is recombined as Cygnus sumnerensis'
- 'Chenornis belongs to Anserinae'
- 'Chenornis graculoides belongs to Chenornis'
- 'Cnemiornis belongs to Cereopsinae'
- 'Cnemiornis calcitrans belongs to Cnemiornis'
- 'Cnemiornis septentrionalis belongs to Cnemiornis' according to Oliver 1955
- 'Cnemiornis septentrionalis belongs to Cnemiornis'
- 'Cygnanser belongs to Cygninae'
- 'Cygnavus senckenbergi belongs to Cygnavus' according to Lambrecht 1931
- 'Cygninini was reranked as the subfamily Cygninae and belongs to Anatidae'
- 'Cygnopterus belongs to Cygninae'
- 'Cygnus belongs to Cygninae'
- 'Cygnus (Olor) was reranked as Olor and belongs to Cygninae'
- 'Cygnus csakvarensis is recombined as Cygnanser csakvarensis'
- 'Cygnus equitum belongs to Cygnus' according to Bate 1916
- 'Cygnus equitum is recombined as Anser equitum'
- 'Cygnus falconeri belongs to Cygnus' according to Parker 1865
- 'Cygnus falconeri belongs to Cygnus'
- 'Cygnus herenthalsi belongs to Cygnus'
- 'Cygnus hibbardi is recombined as Olor hibbardi'
- 'Cygnus paloregonus belongs to Cygnus'
- 'Dendrochen belongs to Dendrocygninae'
- 'Dendrochen robusta belongs to Dendrochen'
- 'Dendrocygna belongs to Dendrocygninae'
- 'Dendrocygna eversa belongs to Dendrocygna'
- 'Dendrocygna validipinnis belongs to Dendrocygna' according to DeVis 1888
- 'Dendrocygna validipinnis belongs to Dendrocygna'
- 'Dendrocygninae belongs to Anatidae'
- 'Dromiceiidae belongs to Aves'
- 'Dromiceius belongs to Dromiceiidae'
- 'Dromiceius ocypus belongs to Dromiceius' according to Miller 1963
- 'Dromiceius ocypus belongs to Dromiceius'
- 'Eoneornis belongs to Anatinae'
- 'Eoneornis australis belongs to Eoneornis'
- 'Eonessa belongs to Eonessinae'
- 'Eonessa anaticula belongs to Eonessa'
- 'Eonessinae belongs to Anatidae'
- 'Eremochen belongs to Cygninae'
- 'Eremochen russelli belongs to Eremochen'
- 'Euryanas belongs to Plectropterinae'
- 'Eutelornis belongs to Anatinae'
- 'Eutelornis patagonicus belongs to Eutelornis'
- 'Fuligula aretina is recombined as Aythya aretina'
- 'Fuligula aretina belongs to Fuligula' according to Portis 1889
- 'Fuligula arvernensis belongs to Fuligula' according to Lydekker 1891
- 'Fuligula arvernensis is recombined as Aythya arvernensis'
- 'Fuligula sepulta belongs to Fuligula' according to Portis 1889
- 'Fuligula sepulta is recombined as Aythya sepulta'
- 'Geochen belongs to Plectropterinae'
- 'Geochen rhuax belongs to Geochen'
- 'Leptoptilos belongs to Ciconiidae'
- 'Leptoptilos pliocenicus belongs to Leptoptilos' according to Zubareva 1948
- 'Leptoptilos pliocenicus belongs to Leptoptilos'
- 'Loxornis belongs to Plectropterinae'
- 'Loxornis clivus belongs to Loxornis'
- 'Merganettinae belongs to Anatidae'
- 'Mergini was reranked as the subfamily Merginae and belongs to Anatidae'
- 'Neochen belongs to Plectropterinae'
- 'Nettapus belongs to Anatidae'
- 'Nettapus eyrensis belongs to Nettapus'
- 'Nettion belongs to Anatinae'
- 'Nettion bunkeri belongs to Nettion'
- 'Nettion greeni belongs to Nettion'
- 'Nettion ogallalae belongs to Nettion'
- 'Nyroca effodiata is recombined as Aythya effodiata'
- 'Nyroca reclusa belongs to Nyroca' according to De Vis 1888
- 'Nyroca reclusa is recombined as Aythya reclusa'
- 'Nyroca robusta belongs to Nyroca' according to De Vis 1888
- 'Nyroca robusta is recombined as Aythya robusta'
- 'Ocyplonessa belongs to Merginae'
- 'Ocyplonessa shotwelli belongs to Ocyplonessa'
- 'Olor matthewi is a subjective synonym of Cygnus paloregonus'
- 'Olor paleocygnus belongs to Olor' according to Lindgren 1900
- 'Olor paleocygnus is a subjective synonym of Cygnus paloregonus'
- 'Oxyura belongs to Oxyurinae'
- 'Oxyura bessomi belongs to Oxyura'
- 'Oxyurinae belongs to Anatidae'
- 'Pachyanas belongs to Anatinae'
- 'Pachyanas chathamica belongs to Pachyanas' according to Oliver 1955
- 'Pachyanas chathamica belongs to Pachyanas'
- 'Palaeospheniscus belongs to Spheniscidae'
- 'Palaeospheniscus novaezealandiae belongs to Palaeospheniscus'
- 'Paranyroca belongs to Paranyrocinae'
- 'Paranyroca magna belongs to Paranyroca'
- 'Paranyrocidae was reranked as the subfamily Paranyrocinae and belongs to Anatidae'
- 'Phoeniconaias belongs to Phoenicopteridae'
- 'Phoeniconaias gracilis belongs to Phoeniconaias' according to Miller 1963
- 'Phoeniconaias gracilis belongs to Phoeniconaias'
- 'Phoeniconotius belongs to Phoenicopteridae'
- 'Phoeniconotius eyrensis belongs to Phoeniconotius' according to Miller 1963
- 'Phoeniconotius eyrensis belongs to Phoeniconotius'
- 'Phoenicopterus novaehollandiae belongs to Phoenicopterus' according to Miller 1963
- 'Phoenicopterus novaehollandiae belongs to Phoenicopterus'
- 'Plectropterinae belongs to Anatidae'
- 'Podiceps belongs to Podicipedidae'
- 'Podiceps gadowi belongs to Podiceps'
- 'Presbychen belongs to Anserinae'
- 'Presbychen abavus belongs to Presbychen'
- 'Querquedula belongs to Anatinae'
- 'Querquedula integra belongs to Querquedula'
- 'Querquedula pullulans belongs to Querquedula'
- 'Romainvillia belongs to Romainvillinae'
- 'Romainvillia stehlini belongs to Romainvillia' according to Lebedinsky 1927
- 'Romainvillinae belongs to Anatidae'
- 'Sarcidiornis mauritianus is recombined as Sarkidiornis mauritianus'
- 'Sarkidiornis belongs to Anatinae'
- 'Sula affinis belongs to Sula' according to Van Beneden 1883
- 'Sula affinis is recombined as Cygnopterus affinis'
- 'Tadorninae belongs to Anatidae'
- 'Teleornis belongs to Plectropterinae'
- 'Teleornis impressus belongs to Teleornis' according to Ameghino 1899