Kermadec Islands expedition reports: European passerines in the Kermadec Group
The history and status of European passerines on the Kermadec Islands are reviewed and supplemented by observations from the Ornithological Society of New Zealand’s expedition to the group from 13 November 1966 to 27 January 1967 and by more recent unpublished data. Of nine species of European passerine recorded from the group, four are established, all apparently self-introduced from the New Zealand mainland some 720-980 km distant. Counts on Raoul Island in January 1967 showed that the more abundant passerines were, in order of relative abundance, Starling, Song Thrush, Tui, Blackbird and Yellowhammer. Measurements of Song Thrush, Blackbird and Starling are recorded.