Children (5 direct children, 10 direct and indirect children):
Wilson's storm petrel
(tree size 3)
Wilsons storm-petrel
Oceanites maorianus
New zealand storm-petrel
Grey-backed storm petrel
Grey-backed storm-petrel
Elliot's storm petrel
(tree size 2)
White-vented storm-petrel
Pincoya storm petrel
Pincoya storm-petrel