The status of selected bird species in the Richmond River district, New South Wales, was analysed for the period 1973-2000. Several species clearly increased or decreased numerically. The White-winged Chough, Zebra Finch and White-backed Swallow are probably extinct locally; the Eastern Bristlebird and Coxen’s Fig-Parrot are confirmed to be Critically Endangered in the state. The […]
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Showing 12 of 1617 documents
Showing 12 of 1617 documents
Recovery Round-up: Volume 26 – Issue 3
Posted: 20/07/2021MEASUREMENTS OF BIRDS AT GOODE BEACH
Posted: 20/07/2021AVIAN POPULATION CHANGES IN A DEVELOPING URBAN AREA IN WESTERN AUSTRALIA OVER AN EIGHTEEN YEAR PERIOD
Posted: 20/07/2021Annual capture and recapture rates of a number of bird species obtained over an eighteen year period in an area cleared for urbanization, have shown changes in populations which are considered related to development in the area. The increase in the number of honeyeaters in particular, implies they have benef1tted from the proliferation of nectar-producing […]
Read MoreWINTER MIXED-SPECIES FORAGING FLOCKS IN ACACIA WOODLANDS OF WESTERN AUSTRALIA
Posted: 20/07/2021A mixed-species foraging flock of more than 100 individuals and up to ten species was monitored over five days in winter in Acacia woodland near Gascoyne Junction, Western Australia. The flock had a core of five species, including Budgerigars Melopsittacus undulatus, woodswallows and chats, plus eleven other species, which joined the flock as it passed […]
Read MoreMIXED-SPECIES FORAGING FLOCKS IN WINTER AT DRYANDRA STATE FOREST, WESTERN AUSTRALIA
Posted: 20/07/2021Point counts (n = 100) were used to assess the pattern of bird distribution during winter in Dryandra Woodland near Narrogin, Western Australia. Ninety-two birds were recorded with the majority of individuals (68%) occurring in mixed-species foraging flocks. From mid-July to early August, mixed-species foraging flocks were followed to identify the species present and estimate […]
Read MoreNESTING BY BLACK-FACED WOODSWALLOWS Artamus cinereus IN THE WHEATBELT OF WESTERN AUSTRALIA
Posted: 20/07/2021Between 1973 and 1976 a population of Black-faced Woodswallows Artamus cinereus was studied at Manmanning, Western Australia. Forty-six breeding groups with an average group size of 3.34 birds were monitored in four years. Of 73 nests that were laid in, 48 hatched and 37 fledged young, a nesting success of 51 per cent. Young that […]
Read MoreINCREASING NUMBERS OF PIED CORMORANTS BREEDING ON THE ISLANDS OFF PERTH, WESTERN AUSTRALIA AND CONSEQUENCES FOR THE VEGETATION
Posted: 20/07/2021There has been an increase in the number of Pied Cormorants Phalacrocorax varius nesting on the small islands off the Perth coast, with larger nesting colonies and increased numbers of nesting sites being used simultaneously. Overall the number of nests has quadrupled in recent years when compared with previous decades. The great majority of birds […]
Read MoreRecovery of Little Penguin Band Number 190-86611
Posted: 20/07/2021Recovery Round-up: Volume 26 – Issue 2
Posted: 19/07/2021SOCIAL BEHAVIOUR OF TWO FREE-RANGING CHICKS OF AUSTRALIAN BRUSH-TURKEY Alectura lathami
Posted: 19/07/2021To date, chicks of the Australian Brush-turkey Alectura lathami have been believed to live solitarily during the first months of their lives. They hatch asynchronously in incubation mounds of leaf litter and receive no parental care. Upon digging themselves out of the mound, they disperse into dense understorey. This hatching process, their camouflaged plumage, lack […]
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