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Food habits of the North Island weka

Notornis, 10 (6), 289-300, 281-284

A.L.K. Carroll (1963)

Article Type: Paper

North Island wekas, once plentiful, became almost extinct approximately 40 years ago, leaving only a small residual population in the Gisborne – East Coast area and Northland (Waipu). Since then, they have multiplied rapidly in the vicinity of Gisborne and are now abundant in that part of the country. Over a period of 18 months 94 wekas were collected from the Gisborne district for study. Gizzard contents were examined and were found to consist of vegetable matter, seeds, insects and other small invertebrates and occasional1 birds’ eggs and frogs. Predominant items of diet were of plant origin – grass, fibrous material, small pieces of wood and clover leaves. A wide variety of seeds was found, most common being of the grass family, with clover and sedge next in order of importance, Insects predominated in the animal food taken, the most important being beetles, wetas and grasshoppers. Earthworms also were a major item of diet, while insect eggs and millipedes were frequently found.









Breeding cycle of the North Island weka

Notornis, 10 (6), 300-302

A.L.K. Carroll (1963)

Article Type: Paper

From nesting records and gonad measurements a study was made of the breeding cycle. It appears that, although breeding occurs throughout the year, it reaches a peak during winter and early spring (June to September). Wekas commonly raise more than one brood in a year; up to four have been recorded. The average number of eggs in a clutch is 3-4, although 5 or 6 are not abnormal.








Sexing of wekas

Notornis, 10 (6), 302-303

A.L.K. Carroll (1963)

Article Type: Paper

Wekas may be sexed with a reasonable degree of accuracy by measuring culmen length and body weight. Culmen lengths in adult males commonly range from 44 mm to 51 mm and in females from 42 mm to 44 mm. Males usually weigh between 900 gm and 1000 gm and females between 670 gm and 806 gm. Juvenile birds may be confused with adult females but are usually distinguishable by the dark colour of their eyes and legs.