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Neoaves
clade, birds
Suliformes
order, birds
Nucleotide Protein
Aequornithes
(core waterbirds), clade, birds
Accipitrimorphae
Coraciimorphae
Australaves
Telluraves
(core landbirds), clade, birds
Otidimorphae
(bustards, cuckoos & allies), clade, birds
Mesitornithiformes
Pterocliformes
Columbimorphae
(pigeons, sandgrouse & allies), clade, birds
Phaethontiformes
Phaethontimorphae
(tropicbirds, sunbittern & allies), clade, birds
Cypseloidinae
subfamily, birds
Strisores
(nightbirds), clade, birds
Accipitriformes
(hawks and eagles), order, hawks & eagles
Anserinae
Tadorninae
Anatinae
Geobiastes
genus, birds
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