Notornis, 24 (1), 9-19
Article Type: Paper
51 Australasian harriers were trapped in North Canterbury during the winters of 1974 and 1975. Data on wing, tail and tarsus length, and weight, are presented. Trends in colour barring of the wings and tail are correlated with age as expressed by iris colour. Some questions are raised from these data concerning possible morphological and behavioural changes in the New Zealand population. Moult sequences are briefly described together with some notes and figures on disease and injuries.