The flame robin ( Petroica phoenicea) is a small passerine bird native to Australia. It is a moderately common resident of the coolest parts of south-eastern Australia, including Tasmania. Like the other two red-breasted Petroica robins—the scarlet robin and the red-capped robin—it is often simply called the robin redbreast. Like many brightly coloured robins of the Petroicidae, it is sexually dimorphic. Measuring long, the flame robin has dark brown eyes and a small thin black bill. The male has a brilliant orange-red chest and throat, and a white patch on the forehead above the bill. Its upper parts are iron-grey with white bars, and its tail black with white tips. Female coloration is a muted grey-brown. Its song has been described as the most musical of its genus.
The position of the flame robin and its Australian relatives on the passerine family tree is unclear; the Petroicidae are not closely related to either the European robin or , but appear to be an early offshoot of the Passerida group of . The flame robin is predominantly insectivore, pouncing on prey from a perch in a tree, or foraging on the ground. A territorial bird, the flame robin employs song and plumage displays to mark out and defend its territory. It is classified by BirdLife International as least concern.
John Gould placed the flame robin in its current genus as Petroica phoenicea in his 1837 description, and it was this latter binomial name that has been used since that time. Given this, Quoy and Gaimard's name was declared a nomen oblitum. The generic name is derived from the Ancient Greek words petros, 'rock', and oikos, 'home', from the birds' habit of sitting on rocks.Boles, p. 66. The specific epithet is also derived from Ancient Greek, from the adjective 'crimson, dark red'. It is one of five red- or pink-breasted species common name known as "red robins", as distinct from the "yellow robins" of the genus Eopsaltria. Although named after the European robin, the flame robin is not closely related to either it or the American robin. The Australian robins were placed in the Old World flycatcher family Muscicapidae,Boles, p. xv. and the whistler family Pachycephalidae,Boles, p. 35. before being classified in their own family Petroicidae.Gill, F. and D. Donsker, eds. (2020). IOC World Bird List (v 10.1). Doi 10.14344/IOC.ML.10.1. http://www.worldbirdnames.org/ Charles Sibley and Ahlquist's DNA-DNA hybridisation studies placed the robins in a Corvida parvorder comprising many tropical and Australian passerines, including Pardalotidae, Maluridae and Meliphagidae, as well as crows.
No subspecies are recognised,Higgins et al., p. 666. and the degree of geographic variation is unclear. Adult male birds which breed on the mainland have been reported as having lighter upperparts and underparts than their Tasmanian relatives, and females are said to be browner, but these differences may also result from worn plumage. Furthermore, migration across the Bass Strait by some birds obfuscates the issue. Mainland and Tasmanian birds are the same size.Higgins et al., p. 681. Ornithologists Richard Schodde and Ian Mason argued that the poor quality of museum collections and partially migratory habits meant that discrete subspecies could not be distinguished on the basis of the observed variation within the species.
Flame-breasted robin was the common name formerly used for the species, and it was gradually abbreviated to flame robin.Boles, p. 68. Other names recorded include bank robin, redhead, and (inaccurately) robin redbreast. Flame robin is the preferred vernacular name of the International Ornithological Congress.Frank Gill and Minturn Wright, Birds of the World: Recommended English Names, Princeton University Press, 2006.
Nestlings have dark grey or brown down feather, cream to grey bills, cream and orange throats. The plumage of juvenile birds in their first moult resembles that of the adult female, but the head and upperparts are streaked and slightly darker. Soon after fledge, juveniles moult into their first immature plumage, and more closely resemble the adult female. The breasts of male juveniles may have some orange feathers. Birds in their second year moult into a second immature phase, some males of which may resemble adult males, while others retain a more immature brown plumage. Determining the age and sex of birds in brown plumage can be very difficult. Information on exact timing of moulting is lacking, but the replacement of takes place over the summer months between December and February.
The colour alone is not a reliable guide to determine the species, as some ( P. boodang) take on an orange hue, but while male scarlet and ( P. goodenovii) have red breasts and black throats, the flame robin's breast plumage extends right up to the base of the bill. It is also a little slimmer and has a smaller head than the scarlet robin, and is clearly larger than the red-capped robin.
The flame robin's calls are grouped into louder and quieter calls; the former can be heard from away, while the latter, which are often briefer, from . Loud songs make up almost 90% of calls in spring, summer, and autumn, but less than 50% of calls from May to July. Males sing rarely during this time, although they do so to defend their territories.Higgins et al., p. 675. Their song is more varied and complex than that of the scarlet robin, and has been described as the most musical of the red robins. A series of descending notes in groups of three, the musical song has been likened to the phrases, " you-may-come, if-you-will, to-the-sea"Slater, Peter (1974) A Field Guide to Australian Birds: Passerines. Adelaide: Rigby. or " you-are-not a-pretty-little-bird like-me". Both males and females sing this song, often perched from a vantage point, such as a stump or fence. This loud song is used to attract the attention of a potential mate, and to announce the bringing of food to its mate or young. The softer call has been described as a , or , and is used as a contact call in the vicinity of the nest.Higgins et al., p. 676. The female makes a hissing sound, if approached while on the nest, and the male has been recorded making a wheezing call when displaying around the nest.
In spring and summer, the flame robin is more often found in wet eucalypt forest in hilly or mountainous areas, particularly the tops and slopes, to an elevation of . It generally prefers areas with more clearings and less understory. In particular, it prefers tall forests dominated by such trees as snow gum ( Eucalyptus pauciflora), mountain ash ( E. regnans), alpine ash ( E. delegatensis), manna gum ( E. viminalis), messmate stringybark ( E. obliqua), black gum ( E. aggregata), white mountain gum ( E. dalrympleana), brown barrel ( E. fastigata), narrow-leaved peppermint ( E. radiata), and black peppermint ( E. amygdalina). It is occasionally encountered in temperate rainforest. In the autumn and winter, birds move to more open areas, such as grasslands and open woodlands, particularly those containing river red gum ( E. camaldulensis), Blakely's red gum ( E. blakelyi), yellow box ( E. melliodora), grey box ( E. microcarpa), and mugga ironbark ( E. sideroxylon), at lower altitude.
Flame robins often become more abundant in areas recently burnt by bushfires, but move away once the undergrowth regrows. They may also move into logged or cleared areas in forests. However, a field study in the Boola Boola State Forest in central Gippsland revealed they are not found in areas where the regrowth after logging is dense.
When perched or between bouts of foraging on the ground, the flame robin holds itself in a relatively upright pose, with its body angled at 45° or less from the vertical, and its wings held low below its tail. It impresses as nervous and twitchy, flicking its wings alternately when still. The flame robin's flight is fast, with a markedly undulating character.
The flame robin is territorial, defending its territory against other members of its species, and also against scarlet robins where they co-occur. In Nimmitabel in southern New South Wales, migratory flame robins invaded and eked out their territories from amid existing scarlet robin territories. Once settled, however, no species dominated over the other and stable boundaries emerged. The flame robin deploys a number of agonistic displays, including a breast-puffing display where it puffs its breast feathers, and a white spot display where it puffs its feathers to accentuate its frontal white spot, white wing markings or white outer tail feathers. They may also fly at intruders or sing to defend their territory.
The breeding season is August to January with one or two broods raised. The male proposes suitable nest sites to the female by hopping around the area. Unlike other robins, the female sometimes initiates the site selection. A pair spends anywhere from one to five days looking before finding a suitable site. The female constructs the nest alone. Eucalypts are generally chosen, but birds have been recorded nesting in Pinus radiata on Mount Wellington in Tasmania. The flame robin is more versatile in its selection of nesting sites than other robins, and has even been recorded nesting in sheds.
The nest is a neat, deep cup made of soft dry grass, moss, and bark. , feathers, and fur are used for binding/filling, generally in a tree fork or crevice, or cliff or riverbank ledge, typically within a few metres of the ground. The clutch generally numbers three or four dull white eggs, which are laid on consecutive days.Higgins et al., p. 677. They are tinted bluish, greyish or brownish, and splotched with dark grey-brown, and measure 18 mm x 14 mm. A field study in open eucalypt forest at Nimmitabel found that flame robins and scarlet robins chose different sites to breed, the former in tree hollows and bark crevices, most commonly of Eucalyptus viminalis around off the ground, and the latter more commonly in forks or on branches of E. pauciflora around above the ground. Flame robins, which were migratory at the site, were more successful in raising young, but the success rate of scarlet robins in the area appeared to be poor compared with other sites.
Avian incubation has been recorded as averaging around 17 days. Like all passerines, the chicks are altricial; they are born blind and naked, and start to develop down feather on their heads on day two. Their eyes open around day six, and they begin developing their primary flight feathers around day nine or ten. For the first three days after hatching, the mother feeds the nestlings alone, with food brought to her by the father. The father feeds them directly from the fourth day onwards, with the mother brooding them afterward until day seven. Flies, butterflies, moths, caterpillars, and beetles predominate in the food fed to the young birds. Flame robins fed a higher proportion of flying insects to their young at Nimmitabel than did scarlet robins, which may have been due to their later start to breeding. Both parents participate in removing Fecal sac from the nest. Parents have been observed feeding young up to five weeks after leaving the nest.
The fan-tailed cuckoo ( Cacomantis flabelliformis) and pallid cuckoo ( C. pallidus) have been recorded as of the flame robin; female cuckoos lay their eggs in robin nests, which are then raised by the robins as their own. One fan-tailed cuckoo was recorded ejecting baby robins before being raised by its foster parents. Other nest predators recorded include the grey shrikethrush ( Colluricincla harmonica), pied currawong ( Strepera graculina), and eastern brown snake ( Pseudonaja textilis).
Compared with the scarlet robin, the flame robin eats a higher proportion of flying insects. Biologist, Doug Robinson, has proposed that scarcity of flying insects in winter is a reason why the flame robin migrates. They have been seen in mixed-species flocks with other small insectivorous passerines, such as scarlet robins, ( Melanodryas cucullata), white-fronted chats ( Epthianura albifrons), and ( Anthus australis).
Among the types of insects consumed are many families of , , and ants, diptera (families Horse-fly and Asilidae), hemiptera, and caterpillars. Other invertebrates eaten include , and Oligochaeta. The flame robin consumes small prey items whole, and bashes larger victims against a hard surface repeatedly to break up before eating. The latter group constitute only 0.5% of prey over time—seasonally varying from a peak of 1.8% in autumn to a low of 0.2% of prey caught in winter.
Description
Distribution and habitat
Behaviour
Courtship and breeding
Feeding
Cited texts
External links
|
|