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An example of albinism in the Australasian harrier Circus approximans gouldi

Notornis, 30 (1), 23-28

Hedley, L.A. (1983)

Article Type: Paper

An albinistic juvenile Australasian Harrier (Circus approximans gouldi) was trapped near Huntly, Waikato. Limited observation of the bird prior to capture suggests that its general behaviour and relationships with conspecifics and other species were normal. The bird’s plumage is described and contrasted with that of normal harriers and the nature of its soft parts is discussed. Other occurrences of aIbinism in the Australasian Harrier are given.

Some population statistics and movements of the western weka

Notornis, 30 (2), 93-107

Coleman, J.D., Warburton, B., Green, W.Q. (1983)

Article Type: Paper

In central Westland, 110 Western Wekas (Gallirallus australis australis) were marked between August 1975 and May 1978, and 38 corpses were examined. Wekas occurred throughout the study site but preferred ecotonal scrublands while avoiding dense forest. Captures fell by 50% over the study period and the number of sightings also decreased significantly. Adults were sexed by a discriminant function based on the bill measurements of dead birds, with a probability of misclassification of live adults of about 4.6%. A sex ratio biased towards males was revealed. Breeding began in late June/July when both sexes had attained maximum annual body weights and fat reserves. Home ranges were generally less than 4.5 ha. The main foods identified from birds collected during June-August and in November were fruits of indigenous forest plants, especially Coprosma spp., and plant foliage, insects and earthworms.

The effects of logging on winter bird populations near Karamea

Notornis, 30 (3), 187-197

Onley, D. (1983)

Article Type: Paper

Winter 5-minute bird counts in unlogged and logged native forest near Karamea showed substantial declines in native forest spec!es after logging and a varied response from introduced species.

The affinities of the New Zealand passerine genus Turnagra

Notornis, 30 (4), 319-336

Olson, S.L., Parkes, K.C., Clench, M.H., Borecky, S.R. (1983)

Article Type: Paper

The external structure, pterylosis, myology, and osteology of Turnagra show that this genus belongs in the bird-of-paradise/ bowerbird assemblage and is not closely related to the Pachycephalinae. Turnagra appears to be the most primitive member of this assemblage, sharing similarities both with the paradisaeid subfamily Cnemophilinae and with the Ptilonorhynchidae.
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