Rheidae
Apterygidae
Tinamidae
Galliformes
Anatidae
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Gruidae
Psophiidae
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Balaenicipitidae
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Eurypygidae
Musophagidae
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Recurvirostridae
Namibiavis
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Opisthocomidae
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Strigiformes
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Phalacrocoracidae
Fregatidae
Procellariidae
Spheniscidae
Gaviidae
Podicipedidae