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Charadriiformes
[Alcae]
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Stercorariidae
[
Stercorariinae
]
Stercorarius
[
Catharacta
]
Stercorarius antarcticus
[
Catharacta antarctica
]
[
Catharacta skua antarctica
]
Stercorarius antarcticus antarcticus
Stercorarius antarcticus hamiltoni
Stercorarius antarcticus lonnbergi
[
Catharacta skua lonnbergi
]
Stercorarius chilensis
[
Catharacta chilensis
]
[
Catharacta skua chilensis
]
Stercorarius longicaudus
Stercorarius longicaudus longicaudus
Stercorarius longicaudus pallescens
Stercorarius maccormicki
[
Catharacta maccormicki
]
Stercorarius parasiticus
Stercorarius pomarinus
Stercorarius skua
[
Catharacta skua skua
]
[
Catharacta skua
]
Problematic Rooting (729574)
Catharacta lonnbergi