The black swan is a large waterbird, a species of swan which breeds mainly in the southeast and southwest regions of Australia. Within Australia, the black swan is nomadic, with erratic migration patterns dependent on climatic conditions. It is a large bird with black plumage and a red bill. It is a monogamous breeder, with both partners sharing incubation and cygnet-rearing duties.
The Australasian wrens are a family, Maluridae, of small, insectivorous passerine birds endemic to Australia and New Guinea. While commonly known as wrens, they are unrelated to the true wrens. The family comprises 32 species in six genera.
The superb fairywren is a passerine bird in the Australasian wren family, Maluridae, and is common and familiar across south-eastern Australia. It is a sedentary and territorial species, also exhibiting a high degree of sexual dimorphism; the male in breeding plumage has a striking bright blue forehead, ear coverts, mantle, and tail, with a black mask and black or dark blue throat. Non-breeding males, females and juveniles are predominantly grey-brown in colour; this gave the early impression that males were polygamous, as all dull-coloured birds were taken for females. Six subspecies groups are recognized: three larger and darker forms from Tasmania, Flinders and King Island respectively, and three smaller and paler forms from mainland Australia and Kangaroo Island.
The monarchs comprise a family of over 100 passerine birds which includes shrikebills, paradise flycatchers, and magpie-larks.
Albert Park is a large public park in the City of Port Phillip, an inner suburban LGA of Melbourne, Victoria, Australia. Located 3 km (1.9 mi) south of the Melbourne central business district, the park encompasses 2.25 km2 of parkland around the 1.8 km (1.1 mi) long Albert Park Lake, a 0.49 km2 Y-shaped artificial lake used both for water sports and public recreation.
Andrew Cockburn FAA is an Australian evolutionary biologist who has been based at the Australian National University in Canberra since 1983. He has worked and published extensively on the breeding behaviour of antechinuses and superb fairy-wrens, and more generally on the biology of marsupials and cooperative breeding in birds. His work on fairy-wrens is based around a detailed long-term study of their curious mating and social system at the Australian National Botanic Gardens.
Extra-pair copulation (EPC) is a mating behaviour in monogamous species. Monogamy is the practice of having only one sexual partner at any one time, forming a long-term bond and combining efforts to raise offspring together; mating outside this pairing is extra-pair copulation. Across the animal kingdom, extra-pair copulation is common in monogamous species, and only a very few pair-bonded species are thought to be exclusively sexually monogamous. EPC in the animal kingdom has mostly been studied in birds and mammals. Possible benefits of EPC can be investigated within non-human species, such as birds.
The splendid fairywren is a passerine bird in the Australasian wren family, Maluridae. It is also known simply as the splendid wren or more colloquially in Western Australia as the blue wren. The splendid fairywren is found across much of the Australian continent from central-western New South Wales and southwestern Queensland over to coastal Western Australia. It inhabits predominantly arid and semi-arid regions. Exhibiting a high degree of sexual dimorphism, the male in breeding plumage is a small, long-tailed bird of predominantly bright blue and black colouration. Non-breeding males, females and juveniles are predominantly grey-brown in colour; this gave the early impression that males were polygamous as all dull-coloured birds were taken for females. It comprises several similar all-blue and black subspecies that were originally considered separate species.
Horsfield's bronze cuckoo is a small cuckoo in the family Cuculidae. Its size averages 22g and is distinguished by its green and bronze iridescent colouring on its back and incomplete brown barring from neck to tail. Horsfield's bronze cuckoo can be destiguished from other bronze cuckoos by its white eyebrow and brown eye stripe. The Horsfield's bronze cuckoo is common throughout Australia preferring the drier open woodlands away from forested areas.
The purple-crowned fairywren is a species of bird in the Australasian wren family, Maluridae. It is the largest of the eleven species in the genus Malurus and is endemic to northern Australia. The species name is derived from the Latin word cǒrōna meaning "crown", owing to the distinctive purple circle of crown feathers sported by breeding males. Genetic evidence shows that the purple-crowned fairywren is most closely related to the superb fairywren and splendid fairywren. Purple-crowned fairywrens can be distinguished from other fairywrens in northern Australia by the presence of cheek patches and the deep blue colour of their perky tails.
The red-winged fairywren is a species of passerine bird in the Australasian wren family, Maluridae. It is non-migratory and endemic to the southwestern corner of Western Australia. Exhibiting a high degree of sexual dimorphism, the male adopts a brilliantly coloured breeding plumage, with an iridescent silvery-blue crown, ear coverts and upper back, red shoulders, contrasting with a black throat, grey-brown tail and wings and pale underparts. Non-breeding males, females and juveniles have predominantly grey-brown plumage, though males may bear isolated blue and black feathers. No separate subspecies are recognised. Similar in appearance and closely related to the variegated fairywren and the blue-breasted fairywren, it is regarded as a separate species as no intermediate forms have been recorded where their ranges overlap. Though the red-winged fairywren is locally common, there is evidence of a decline in numbers.
The red-backed fairywren is a species of passerine bird in the Australasian wren family, Maluridae. It is endemic to Australia and can be found near rivers and coastal areas along the northern and eastern coastlines from the Kimberley in the northwest to the Hunter Region in New South Wales. The male adopts a striking breeding plumage, with a black head, upperparts and tail, and a brightly coloured red back and brown wings. The female has brownish upperparts and paler underparts. The male in eclipse plumage and the juvenile resemble the female. Some males remain in non-breeding plumage while breeding. Two subspecies are recognised; the nominate M. m.melanocephalus of eastern Australia has a longer tail and orange back, and the short-tailed M. m. cruentatus from northern Australia has a redder back.
Richard Schodde, OAM is an Australian botanist and ornithologist.
Bateman's principle, in evolutionary biology, is that in most species, variability in reproductive success is greater in males than in females. It was first proposed by Angus John Bateman (1919–1996), an English geneticist. Bateman suggested that, since males are capable of producing millions of sperm cells with little effort, while females invest much higher levels of energy in order to nurture a relatively small number of eggs, the female plays a significantly larger role in their offspring's reproductive success. Bateman's paradigm thus views females as the limiting factor of parental investment, over which males will compete in order to copulate successfully.
Gilbert's honeyeater, also known as the Swan River honeyeater or western white-naped honeyeater, is a passerine bird of the honeyeater family Meliphagidae native to southwestern Australia. A mid-sized honeyeater, it is olive-green above and white below, with a black head, nape and throat and a white patch over the eye and a white crescent-shaped patch on the nape. The bill is brownish-black and the eyes a dull red. The sexes have similar plumage.
John Weaver Fitzpatrick is an American ornithologist primarily known for his research work on the South American avifauna and for the conservation of the Florida scrub jay. He is currently the Louis Agassiz Fuertes Director of the Cornell Lab of Ornithology in Ithaca, New York.
Mark Adrian Elgar is an Australian behavioural and evolutionary ecologist, based at the University of Melbourne since 1991. He established his reputation with research on bird foraging strategies and sexual cannibalism in spiders, but now explores a variety of evolutionary questions around sexual selection, social behaviour and chemical communication.
Loeske E. B. KruukFRS is an evolutionary ecologist who is a Royal Society Research Professor at the University of Edinburgh. She was awarded the 2018 European Society for Evolutionary Biology President's Award. In 2023, she was elected as a Fellow of the Royal Society.
Elaina Marie Tuttle was an American behavioral geneticist and biology professor whose academic research focused on ornithology and study of the white-throated sparrow. During her graduate and post-doctoral work, she investigated how bird sexual selection has evolved and the trade-offs in reproduction that have occurred alongside sperm competition mechanisms in sparrows and in the fairy wren. Her last major publication in 2016 discussed the evolution of a sexual "supergene" in the white-throated sparrow that has created a complementary pair of genetic sexes in addition to the W and Z sex chromosomes found in birds. The decades of work researching the sparrow at the Cranberry Lake Biological Station (CLBS) for Indiana State University resulted in her being given multiple awards and the President's Medal for her accomplishments.
