Opinions from J. M. Broughton 2004
- 'Anas albeola is recombined as Bucephala albeola'
- 'Anas caerulescens is recombined as Chen caerulescens'
- 'Anas canadensis is recombined as Branta canadensis'
- 'Anas clypeata belongs to Anas'
- 'Anas fusca is recombined as Melanitta fusca'
- 'Anas jamaicensis is recombined as Oxyura jamaicensis'
- 'Anas marila is recombined as Aythya marila'
- 'Anas perspicillata is recombined as Melanitta perspicillata'
- 'Anas platyrhynchos belongs to Anas'
- 'Anas valisineria [misspelled as Aythya valisneria] belongs to Aythya'
- 'Anser hutchinsii is recombined as Branta hutchinsii'
- 'Archibuteo regalis is recombined as Buteo regalis'
- 'Ardea canadensis is recombined as Grus canadensis'
- 'Ardea herodias belongs to Ardea'
- 'Ardea lentiginosa is recombined as Botaurus lentiginosus'
- 'Carbo auritus is recombined as Phalacrocorax auritus'
- 'Carbo penicillatus is recombined as Phalacrocorax penicillatus'
- 'Cepphus columba belongs to Cepphus'
- 'Charadrius vociferus belongs to Charadrius'
- 'Chen rossii belongs to Chen'
- 'Colymbus aalge is recombined as Uria aalge'
- 'Colymbus auritus is recombined as Podiceps auritus'
- 'Colymbus immer is recombined as Gavia immer'
- 'Colymbus stellatus is recombined as Gavia stellata'
- 'Corvus brachyrhynchos belongs to Corvus'
- 'Corvus corax belongs to Corvus'
- 'Diomedea albatrus is recombined as Phoebastria albatrus'
- 'Falco columbarius belongs to Falco'
- 'Falco cooperi is recombined as Accipiter cooperi'
- 'Falco cyaneus is recombined as Circus cyaneus'
- 'Falco jamaicensis is recombined as Buteo jamaicensis'
- 'Falco leucocephalus is recombined as Haliaeetus leucocephalus'
- 'Falco lineatus is recombined as Buteo lineatus'
- 'Falco mexicanus belongs to Falco'
- 'Falco peregrinus belongs to Falco'
- 'Falco sparverius belongs to Falco'
- 'Fulica americana belongs to Fulica'
- 'Fuligula affinis is recombined as Aythya affinis'
- 'Mergus serrator belongs to Mergus'
- 'Milvus leucurus is recombined as Elanus leucurus'
- 'Numenius americanus belongs to Numenius'
- 'Pelecanus erythrorhynchos belongs to Pelecanus'
- 'Pelecanus occidentalis belongs to Pelecanus'
- 'Phalacrocorax pelagicus belongs to Phalacrocorax'
- 'Phasianus gallus is recombined as Gallus gallus'
- 'Podiceps nigricollis belongs to Podiceps'
- 'Procellaria glacialis is recombined as Fulmarus glacialis'
- 'Rallus longirostris belongs to Rallus'
- 'Recurvirostra americana belongs to Recurvirostra'
- 'Scolopax fedoa is recombined as Limosa fedoa'
- 'Scolopax phaeopus is recombined as Numenius phaeopus'
- 'Scolopax semipalmatus is recombined as Catoptrophorus semipalmatus'
- 'Scops kennicottii is recombined as Otus kennicottii'
- 'Strix alba is recombined as Tyto alba'
- 'Strix flammea is recombined as Asio flammeus'
- 'Strix virginiana is recombined as Bubo virginianus'
- 'Tetrao californicus is recombined as Callipepla californica'
- 'Tringa alba is recombined as Calidris alba'
- 'Tringa squatarola is recombined as Pluvialis squatarola'
- 'Vultur aura is recombined as Cathartes aura'