SummaryHemmings, A.D. (1989). Winter territory occupation and behaviour of skuas at the Chatham Islands, New Zealand.Emu90, 108–113.In early July 1986, 27 out of 36 skua territories examined were occupied by territorial Great SkuasStercorarius skua lonnbergiat South East Island in the Chathams group east of New Zealand. Eighty-two per cent of the skuas present on territories during the breeding season were also present on territory in July. On 11 territories, skuas were seen to exhibit specific territorial behaviours typically seen during the breeding season—albeit at lower intensity and frequency. On one territory the establishment of a new pair bond was observed. The most abundant and frequently encountered prey remains on territories were Goose-barnaclesLepas australis, which do not appear in skua diets during the breeding season on South East Island.