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Showing 12 of 1617 documents
Showing 12 of 1617 documents
IMMATURE BARE PART COLOURS IN THE PIED MONARCH Arses kaupi
Posted: 11/08/2021CHANGES IN THE NUMBERS OF WATERBIRDS ON LLANGOTHLIN LAGOON, NSW, IN RELATION TO THE WATER LEVEL AND DISTANT FLOODING, 1981-84
Posted: 11/08/2021Waterbirds on Llangothlin Lagoon, New South Wales were counted regularly between 1981 and 1984 and their numbers related to water level and to the occurrence of floods on inland rivers. Some species responded differently to local conditions in a period of widespread drought than they did in times of average or above rainfall. The implications […]
Read MoreMEASUREMENTS OF THE NOISY PITTA Pitta versicolor IN AUSTRALIA
Posted: 11/08/2021Measurements of the wing, tail, tarsus and culmen of the Noisy Pitta Pitta versicolor show no sexual dimorphism but significant latitudinal increases, southwards from Cape York Peninsula. This follows Bergmann’s Rule. These geographic differences, and the lack of any seasonal differences, suggest that there is no extensive north-south movement of Noisy Pittas in the southern […]
Read MoreDUAL SINGING BETWEEN AN ADULT AND FLEDGLING MARBLED FROGMOUTH
Posted: 11/08/2021INTERSPECIFIC AGGRESSIVE BEHAVIOUR BETWEEN ROBINS AND OTHER BIRDS IN EUCALYPT FOREST
Posted: 11/08/2021Records were kept for 328 interactions between Scarlet/Flame Robins and other landbirds at a site in south-eastern New South Wales. Fifty-seven per cent of interactions were between robins and other ground-foragers, particularly with Jacky Winter (41 % ). Bark-foragers, foliage-foragers and honeyeaters were rarely, if ever, attacked, except when they came near nests of robins. […]
Read MoreBREEDING OF RAINBOW BEE-EATERS IN SOUTHERN VICTORIA
Posted: 11/08/2021Rainbow Bee-eaters Merops ornatus studied over a six-year period in southern Victoria excavated nesting burrows in creek banks and nearby flat or sloping terrain; sites, but not burrows, were commonly used in more than one season. Nesting dispersion varied from solitary to loosely clustered. Egg-laying commenced in early November and hatching and fledging peaked in […]
Read MoreCYCLE OF COLOUR CHANGES IN CATTLE EGRETS Ardeola ibis (coromandus) IN AUSTRALIA DETERMINED FROM FIELD OBSERVATIONS OF MARKED BIRDS
Posted: 11/08/2021Colour changes in nestlings and the timing and nature of changes in colour which take place in adults before, during and after the nesting season, as determined from field observations of marked birds, are described for the Cattle Egret Ardeola ibis coromandus at two Australian breeding colonies. Nestlings have a yellow beak at hatching, which […]
Read MoreAustralasian Bird Reviews: No. 6 – THE STATUS OF QUEENSLAND SEABIRDS
Posted: 11/08/2021A survey was made of seabird populations and breeding islands from Cape York south to off Mackay between 1979 and 1990. These data are supplemented with that of others from the Gulf of Carpentaria, the Torres Strait, and other islands of the Great Barrier Reef and south of Mackay to the Queensland/ New South Wales […]
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