Vigors and Horsfield, 1827,
New South Wales, Australia.
Traditionally thought to form a species-group with T. australasia, T. tutus, T. veneratus, T. gambieri and T. godeffroyi (and with forms previously included within those species); has been considered conspecific with T. australasia. Usually regarded as conspecific with T. recurvirostris (which see). Races regina, vitiensis and eximius of T. chloris sometimes considered to belong in present species. T. ruficollaris, previously treated as race of T. tutus, was once thought possibly better included within T. sanctus. In the past, race ruficollaris of Ceyx azureus inexplicably and erroneously listed under present species. Populations of Lord Howe I and Norfolk I sometimes separated as respective races adamsi and norfolkiensis, but they differ little from New Zealand vagans. Four subspecies currently recognized.
Food and feeding
Status and conservation
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