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Seabirds found dead on New Zealand beaches in 1981

Notornis, 30 (2), 125-135

Powlesland, R.G. (1983)

Article Type: Paper

In 1981, 3,654 kilometres of coast were patrolled by 182 members of the Ornithological Society of New Zealand and their friends, and 5,627 dead seabirds were found. New records for the Beach Patrol Scheme were a Kermadec Petrel (Pterodroma neglecta) and a Long-tailed Skua (Stercorarius longicaudus). Unusual finds were Yellow-nosed Mollymawk (Diomedea chlororhynchus), Wedge-tailed Shearwater (Puffinus pacificus), Wilson’s Storm Petrel (Oceanites oceanicus), Black-bellied Storm Petrel (Fregetta tropica) and Black-fronted Tern (Sterna albostriata). A major wreck of Kerguelen Petrels (Pterodroma brevirostris) and Blue Petrels (Halobaena caerulea) occurred in spring along the western coast of the North Island.

Roosts at foraging sites in black-billed gulls

Notornis, 29 (2), 109-112

Evans, R.M. (1982)

Article Type: Paper

Diurnal roosts of Black-billed gulls (Larus bulleri) were found at 37% of inland foraging sites during the breeding season. Roosts were most common and commuting between colony and foraging groups least common far (>5 km) from the colony. Selective use of roosts far from the colony is energetically efficient and may help to maintain local population densities at levels sufficient to permit efficient search for food by means of local enhancement.

The black-winged petrel (Pterodroma nigripennis) in the South-West Pacific and the Tasman Sea

Notornis, 29 (4), 293-310

Jenkins, J.A.F., Cheshire, N.G. (1982)

Article Type: Paper

Black-winged Petrels (Pterodroma nigripennis) seen since 1959 in the Tasman Sea and between 1970 and 1979 in the South-west Pacific are charted to show their distribution in the region. They are absent from the end of June to the end of October. The limited information on their breeding islands is reviewed and is amplified whenever possible by unpublished data

A breeding study of the South Island fantail (Rhipidura fuliginosa fuliginosa)

Notornis, 29 (3), 181-195

Powlesland, M.H. (1982)

Article Type: Paper

The breeding of the South Island Fantail (Rhipidura fuliginosa fuliginosa) was studied at Kowhai Bush, Kaikoura, for three breeding seasons from 1976 to 1978. Although 372 birds (nestlings and adults) were banded, few were seen again and very few bred in the study area. Breeding occurred from August to February. Some pairs raised three broods but attempted up to five if failures occurred. Details are given of nests, nest building, egg laying, clutch size, incubation, hatching and fledging success, and juveniles. Both sexes shared nest building, incubation, brooding, feeding nestlings and feeding juveniles, although the division of labour was sometimes unequal. Some aspects of behaviour differed slightly from that of the North Island subspecies. Females bred at one year old, but males could breed within one or two months of fledging when paired with an adult. A seemingly unpaired female successfully raised a brood of three young. Juveniles from one family group sometimes joined another family group and were accepted and fed by the foster parents. Black pairs produced young in the ratio of three black to one pied, and black x pied matings produced approximately equal numbers of black and pied young. Pied pairs produced 97.8% pied and 2.2% black young, which conflicts with the model previously proposed for the genetics of melanism in the Fantail.

The size of the sooty shearwater population at the Snares Islands, New Zealand

Notornis, 29 (1), 23-30

Warham, J.; Wilson, G.J. (1982)

Article Type: Paper

The size of the sooty shearwater (Puffinus griseus) population at the Snares Islands was estimated by counting burrows in the main vegetation types. Some 3,287,000 burrows were calculated for Main Island, the highest densities being 1.9/m2 in Poa meadows, with 1.2/m2 under the trees of the Olearia forest. Most burrows were occupied but data on rates of occupation by breeding birds were not satisfactory. Assuming a 75% occupancy rate. we get a total population of about 2,750,000 burrow-holding pairs on the 328 ha of the two largest islands.
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