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Birds of the Western Chain, Snares Islands 1983-84

Notornis, 31 (3), 209-223

C.M. Miskelly (1984)

Article Type: Paper

Birds observed during landings on four islets of the Western Chain, Snares Islands, in February 1984 are discussed. A census of Salvin’s Mollymawk revealed 586 chicks on two of the islets and one stack, and so the population is not likely to exceed 650 pairs. The numbers of the eight other bird species known to breed on the Western Chain were estimated, and their distribution is described. Measurements of 20 chicks of Snares Crested Penguin indicate that the breeding cycle on the Western Chain is about six weeks later than on Main Island. Buller’s Mollymawk, Mottled Petrel, Sooty Shearwater, Scuthern Skua and Red-billed Gull are new breeding records for the Western Chain, and eight other species observed had not been reported previously.

Seabirds found dead on New Zealand beaches in 1982 and a review of penguin recoveries since 1960

Notornis, 31 (2), 155-171

Powlesland, R.G. (1984)

Article Type: Paper

In 1982, 3,705 kilometres of coast were patrolled and 6,957 dead seabirds were found. Large numbers of sooty shearwaters (Puffinus griseus) were found on Stewart Island beaches (mainly in July) and Auckland West beaches (November-December). Large numbers of blue penguins (Eudyptula minor) were found on Auckland West and Auckland East beaches in January-February and August-September. Unusual finds were single specimens of long-tailed skua (Stercorarius longicaudus), Black-fronted tern (Sterna albostriata), Arctic tern ( S. paradisaea) and little tern (S. albifrons). A summary is given of the coastaI and monthly distribution for each species of penguin found over the 1960-1982 period.

The relationships of the extinct Chatham Island eagle

Notornis, 31 (4), 273-277

S.L. Olson (1984)

Article Type: Paper

The extinct subfossil eagle of the Chatham Islands is referable to the genus Haliaeetus rather than to Ichthyophaga wherein originally described. Haliaeetus australis, as it should now be known, is more similar to northern species of the genus, particularly H. pelagicus, than to the geographically closer species H. leucogaster, and its ancestors probably colonised the Chatham Islands from the Northern Hemisphere rather than from Australasia.

Solander Island birds

Notornis, 31 (2), 182-183

Cooper, W., Morrison, K. (1984)

Article Type: Short Note

Differentiating the sexes of the Brown Creeper

Notornis, 31 (1), 19-22

Cunningham, J.B. (1984)

Article Type: Paper

The measurements of male and female Brown Creepers (Finschia novaeseelandiae) were compared to determine whether they are sexually dimorphic and, if so, which characters can be used to distinguish the sexes. In all the measured characters males were significantly larger than females. Possible selective advantages of the Brown Creeper’s sexual dimorphism are discussed. Wing length was found to be the most reliable discriminator of sex.
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