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The distribution of banded rails and marsh crakes in coastal Nelson and the Marlborough Sounds

Notornis, 36 (2), 117-123

G. Elliott (1989)

Article Type: Paper

The distribution of banded rails and marsh crakes in coastal Nelson, Buller and the Marlborough Sounds was surveyed between October 1980 and December 1982. Banded rails and marsh crakes were found only in saltmarshes in Nelson and the Marlborough Sounds, though marsh crakes were difficult to detect and could have been more widespread. Banded rails were found only in saltmarshes with a freshwater supply with stands of sea rush and mixed stands of jointed rush and marsh ribbonwood. The Nelson-Marlborough banded rail population consisted of about 100 breeding pairs and is isolated from the banded rail populations further north and south.

Vertical distribution of birds mist-netted in a mixed lowland forest in New Zealand

Notornis, 36 (4), 311-321

B.M. Fitzgerald; H.A. Robertson; A.H. Whitaker (1989)

Article Type: Paper

Birds in forest in the Orongorongo Valley near Wellington were caught over a 7-year period (1969-76) in mist-net rigs consisting of six nets one above another, forming a continuous curtain of nets from near ground level to the forest canopy. We recorded which net in the rigs each bird was caught in, and described the vertical distribution of 14 species of bird. Hedgesparrows, fantails, tomtits and blackbirds were caught more often in the lower nets, kingfishers, silvereyes and bellbirds were caught more often in the upper nets, and moreporks, riflemen, whiteheads, grey warblers, song thrushes, tuis and chaffinches were caught more or less evenly at both levels. The vertical profiles differed between rigs. For the three species caught most commonly (silvereye, blackbird and bellbird), the mean height of capture varied with time of day and with season. The vertical distribution is a useful characteristic in helping to define the niches of these birds.

The distribution of Buller’s shearwater (Puffinus bulleri) in New Zealand coastal waters and in the Tasman Sea

Notornis, 35 (3), 203-215

J.A.F. Jenkins (1988)

Article Type: Paper

Records gathered since 1960 in the coastal waters of New Zealand and in the Tasman Sea are plotted. They show the September return of Buller’s shearwaters (Puffinus bulleri) from migration; their distribution through the austral summer; and their almost total withdrawal from the region by the end of May. Their present wider distribution is shown, apparently related to the increasing numbers of breeding birds at the Poor Knights Islands.

Osteological differences between Sula and Morus, and a description of an extinct new species of Sula from Lord Howe and Norfolk Islands, Tasman Sea

Notornis, 35 (1), 35-57

G.F. van Tets; C.W. Meredith; P.J. Fullagar; P.M. Davidson (1988)

Article Type: Paper

Osteological differences between boobies, Sula, and gannets, Morus, were found for every major element examined. These differences confirm that Sula and Morus are generically distinct. Sula tasmani n.sp. is described from bones found in aeolian coral sand dunes at Lord Howe and Norfolk Islands, Tasman Sea. Sula tasmani is larger than extant and known fossil species of Sula, the upper part of its massive bill being more concave laterally.
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