ISSN:0158-4197    

DOI:10.1071/MU963177

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

摘要:

Summary1.The Yellow-tniled Thornbill is gregarious and associates in flocks during the breeding and non-breeding periods.2.The nesting season is in the spring, October being the peak month. This is correlated with the rising temperature gradient.3.Both the male and the female assist in the construction of the nest. The same nest site may he used by a particular pair for several successive years, and only one nest may be built each season.4.The incubation and fledging periods are 18–20 and 17–19 days respectively.5.The female alone incubates. Both parents feed the nestlings and fledglings. Co-operative feeding of nestlings by progeny from previous broods commonly occurs.6.Up to four broods may be raised in a season.7.Breeding mortality data indicate that the Yellow-tailed Thornbill is a moderately successful breeder and that most young hatched in successful nests are fledged.8.The mean clutch size is 3·2±0·5. A seasonal trend in mean clutch size occurs.9.The species is a common host of the Golden Bronze-Cuckoo which apparently removes one of the thornbill eggs when depositing its own. Most cuckoo chicks that hatch are fledged.

ISSN:0158-4197    

DOI:10.1071/MU963185

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

摘要:

SummaryThe Jabiru appears to have been at the lime of early settlement a definite resident of the Sydney district, and its range may have extended farther south. Consequent upon settlement its range was reduced and the bird disappeared from its southern limits in the Sydney and Hunter districts and possibly farther north. In the last 30 years a definite southward extension of the breeding range has taken place and the records at Shoalhaven and Bega indicate that this extension may still be progressing. The two records from Victoria are not considered attributable to this extension, but probably represent vagrant wanderers. Despite this encouraging re-appearance of such a prominent (and therefore vulnerable) species, the actual numbers would appear to be small.

ISSN:0158-4197    

DOI:10.1071/MU963201

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

摘要:

SummarySuperb Blue Wrens,Malurus cyaneus, were subjected to experimental territory infringement by means of models—prepared skins mounted in a life-like manner. Only the dominant male in the group showed aggression during winter, hut all mature members of the group (which may include more than one male) responded during nesting.When models ofMalurusspecies, other thanM. cyaneus.were presented, the initial reaction was usually negative. However, after aggressive experience with a model of its own species.M. cyaneusreadily responded to models of these other dose relatives Field observations on mixed populations showed that no fighting occurred between these sympatric species.

ISSN:0158-4197    

DOI:10.1071/MU963207

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

ISSN:0158-4197    

DOI:10.1071/MU963215

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

摘要:

SummaryObservations are recorded on the birds of two neighbouring islands in Lake Alexandrina, South Australia, including the first report for that Stale of a substantial breeding colony of the White Egret,Egretta alba.Notes are given on the second report of the breeding of the Glossy Ibis,Plegadis falcinellus, in South Australia, together with observations on a Little Egret,Egretta garzetta, in full breeding plumage.

ISSN:0158-4197    

DOI:10.1071/MU963224

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

ISSN:0158-4197    

DOI:10.1071/MU963234

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

ISSN:0158-4197    

DOI:10.1071/MU963242

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

ISSN:0158-4197    

DOI:10.1071/MU963253

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor

ISSN:0158-4197    

DOI:10.1071/MU963258a

出版商:Taylor&Francis    

年代:1963

数据来源: Taylor