New Zealand Birds

11001-50106 Skulls of the three sympatric Chatham Island rail species, all were flightless, and are now extinct: (top) Hawkin's rail (Diaphorapteryx hawkinsi), (centre) Dieffenbach's rail (Hypotaenidia dieffenbachii), and (bottom) Chatham Island rail (Cabalus modestus). All are common in Holocene deposits and middens

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11001-50106 Skulls of the three sympatric Chatham Island rail species, all were flightless, and are now extinct: (top) Hawkin's rail (Diaphorapteryx hawkinsi), (centre) Dieffenbach's rail (Hypotaenidia dieffenbachii), and (bottom) Chatham Island rail (Cabalus modestus). All are common in Holocene deposits and middens

Chathams rail skulls 50106 Chatham island rails Cabalus modestus Hypotaenidia Gallirallus dieffenbachii diaphorapteryx hawkinsi extinct rallus Dieffenbachs Hawkins