Publications

Transect counts and other observations in 1980 and 1984-1985 revealed a winter low and summer peak in raptor numbers and species diversity at Armidale (N.S.W.). Most of the common species were more numerous in summer than in winter; literature data indicate that these species are correspondingly more numerous in winter than in summer in some […]

Data are given on abundance of the more common waterbirds at Moitaka sewerage works, Port Moresby. Egrets and Pied Herons showed few seasonal fluctuations whereas Australasian Grebes, Black-winged Stilts and Masked Lapwings increased after the breeding-season.  Terns were annual passage migrants. Jacanas occurred only when the south-eastt rade winds accumulated scum into firm mats. Species […]

Birds were counted along four 8-9 ha transects 50 m wide through 1981. Densities averaged 8.3 – 11.1 birds/ha., with the numbers tending to be highest in winter and lowest in spring. About 50% of individuals belonged to species that are insectivorous, 35% were honeyeaters (eating nectar and insects) and about 13% were of granivorous […]