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Passeriformes
(song birds), order, birds
Nucleotide Protein
Neoaves
clade, birds
Cyanoramphus
genus, birds
Porphyrio
Xenicus
Acanthisittidae
(New Zealand wrens), family, birds
Strigops
Psittacidae
(parrots), family, birds
Psittaciformes
(parrots and others), order, birds
Corvoidea
superfamily, birds
Rallidae
(rails), family, birds
Gruiformes
(cranes, rails & allies), order, birds
Neognathae
infraclass, birds
Apteryx
Apterygidae
family, birds
Apterygiformes
(kiwis), order, birds
Palaeognathae
superorder, birds
Aves
(birds), class, birds
Mohoua
Australaves
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