Children (17 direct children, 35 direct and indirect children):
Eurasian oystercatcher
(tree size 8)
Oystercatcher, eurasian oystercatcher
Black oystercatcher
Haematopus bachmani
Canary islands oystercatcher
Canarian oystercatcher
American oystercatcher
(tree size 4)
Haematopus palliatus
Pied oystercatcher
Australian pied oystercatcher
African oystercatcher
African black oystercatcher
Variable oystercatcher
(tree size 2)
Haematopus unicolor
Sooty oystercatcher
(tree size 2)
Haematopus fuliginosus
Blackish oystercatcher
(tree size 1)
Haematopus ater
Chatham oystercatcher
Chatham islands oystercatcher
South island oystercatcher
South island pied oystercatcher
Magellanic oystercatcher
Haematopus leucopodus
Haematopus niger
(tree size 1)
Haematopus durnfordi
Haematopus haematopus
Haematopus osculans
Haematopus quoyi