From 1997 to 1998 the reproductive biology of a colony of Great Egrets Ardea alba at the Perth Zoo, Western Australia was studied. A cherry picker was used to provide elevation so that an accurate and rapid count of the number of active nests, eggs and chicks, nesting material and the size of nests and […]
Read MoreThe vertebrate prey of the Cattle Egret Ardea ibis was determined from 850 boluses regurgitated by advanced chicks over 12 breeding seasons from 1981 to 1993, at three heronries in the Lockyer Valley, south-east Queensland. Vertebrates comprised one species of mammal, 16 species of reptile and nine species of amphibians and included the locally rare […]
Read MorePlumage descriptions and morphometric measurements were obtained from adult and juvenile Rufous Treecreepers of both sexes. Plumage characteristics differed between the sexes in adults and juveniles, and between adults and juveniles of the same sex. T he main plumage differences between adults and juveniles were the overall darker coloration of the juvenile plumage and the […]
Read MoreA new method for distinguishing certain species of honeyeaters and chats in first immature plumage is presented. This makes use of the difference between juveniles and adults in the shape of the longest feather of the alula. First immatures with the juvenile longest feather of the alula retained can be distinguished from adults on the […]
Read MoreThe following is a summary of banding details collected on Wonga Pigeons Leucosarcia melanoleuca at Moonee, near Coffs Harbour, New South Wales, from 4 November 1991 to 31 December 1998. Fifty-nine birds were banded and 226 recaptures were made in just over seven years.
Read MoreFrom 1973 to 1976, I studied Black-faced Woodswallows Artamus cinereus in the wheatbelt of Western Australia, where the species is resident all the year round. By 1975 all the birds in one group were individually colour-banded and their contributions at four nests were recorded during 68 hours of hide-watches. All birds, presumably of both sexes, […]
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