Notornis, 48 (4), 207-216
Article Type: paper
The population status of the Chatham Island tomtit (Petroica macrocephala chathamensis ) was determined for each island of the Chathams group, east of New Zealand. Also, the breeding biology of the population on Rangatira (South East Island), which is free of introduced mammalian pests, was determined from observations made during 8 breeding seasons, 1981/82 to 1988/89. The total population of the Chatham Island tomtit is estimated to be