30 cm. Green, bright emerald on forehead and face, olive on the rest of the plumage
, yellower below; outer webs of primaries purplish-blue
, tail margined yellow. Immature undescribed.
Antipodes I and its islets (Archway, Bollons, Inner Windward, and Leeward) (1).
Tall dense Poa litorosa tussocks, especially on coastal slopes and along watercourses, whereas sympatric C. novaezelandiae tended to occupy more open terrain.
Diet and Foraging
Poa and Carex leave comprised 70% of records, with seeds (13%), berries, flowers, and other vegetation (10%), and carrion of penguins and petrels (6%).
Sounds and Vocal Behavior
Calls include a chattering low-pitched “kok…” with a bubbling quality, soft clucking, and loud high-pitched chatters, and soft single notes.
Oct–Jan. Nest in a well-drained burrow, 1 m or more long, excavated in fibrous peat beneath vegetation or in thick matted bases of tall tussocks. Clutch size unknown, but 1–3 fledged young recorded.
VULNERABLE. CITES II. A BirdLife “restricted-range” species. Generally common, with a total population estimated at 2000–3000 birds. The only threat to this species is the accidental introduction of some predator (rats or cats) from a fishing or other passing vessel; although once a remote possibility, increased fishing pressure in waters around the (uninhabited) Antipodes has greatly heightened the chances of such an event.