Behaviour Red-capped robin




male in breeding plumage vocalising,

eulo in southwestern queensland


the red-capped robin encountered alone or in pairs, although groups of 8 birds—a mated pair , young—may seen in autumn , winter. species may join mixed-species flocks other small insectivorous passerines; species recorded include willie wagtail (rhipidura leucophrys), southern whiteface (aphelocephala leucopsis), rufous whistler (pachycephala rufiventris) , black-faced woodswallow (artamus cinereus) in queensland, , chestnut-rumped thornbill (acanthiza uropygialis), buff-rumped thornbill (a. reguloides) or inland thornbill (a. apicalis) in western australia.


the red-capped robin typically perches in prominent location low ground, flicking wings , tail. active , not stay still long. female has been reported being tame, while male more wary of human contact.


the red-capped robin territorial during breeding season; area occupied has been measured between 0.25 , 1.2 ha (0.6–3 acres). pair lives , forages within territory before dispersing in autumn. male proclaims ownership singing loudly suitable perch @ territory boundary, , confronts other males harsh scolding call should make incursion. 2 males have been seen face 1 30 cm 1 m (12–40 in) apart, flicking wings , manoeuvring position in threat display while female incubating eggs. both sexes react playback of song recordings. male defend against incursions male scarlet robins, , conversely avoid foraging in latter species territories. juvenile red-capped robins unable live in territories occupied adult birds, , need travel find unoccupied land; furthest dispersal recorded date has been 36 km (22 mi), terrick terrick national park across farmland gunbower state forest in northern victoria.


breeding

the breeding season takes place on 5 months august january 3 broods raised. male proposes suitable nest sites female rubbing body on suitable tree fork, while trilling continuously. may indicate several sites before female makes decision build, @ point constructs nest alone. nest neat, deep cup made of soft dry grass , bark. spider webs, feathers , fur used binding or filling, , nest placed in tree fork or mistletoe bush. may decorated lichen , camouflaged blend in surroundings. 2 3 dull white eggs tinted bluish, greyish or brownish , splotched dark grey-brown laid on consecutive days, measuring 16 mm × 13 mm (0.6 × 0.5 in). females alone develop brood patches , incubate, although both sexes feed young. male keep lookout either on nest or perched on nearby branch, rather brood while female foraging, , parents feed young , dart off if there predators in vicinity. extra-pair mating , fertilisation common, 23% of nestlings , 37% of broods having different father 1 rearing them, , there evidence extra-pair couplings more produce male birds.


like passerines, chicks altricial; born blind , covered thin layer of down. 7 days, stretching wings , preening, , @ 2 weeks able fly. parents feed young @ least 3 weeks after leaving nest, , have been recorded giving them spiders, , insects such flies , moths. males take on feeding young when females begin renesting next brood. in field study near cooma in southern new south wales, fledglings observed disperse natal territory after 4 6 weeks single brood year, , in less week on both occasions in pair raised 2 broods in season. long breeding season , multiple broods therein adaptation mild climate , high levels of predation. despite this, on average 2 young fledged per year.


the brush cuckoo (cacomantis variolosus), pallid cuckoo (c. pallidus), horsfield s bronze cuckoo (chrysococcyx basalis), , black-eared cuckoo (c. osculans) have been recorded brood parasites of red-capped robin; female cuckoos lay eggs in robin nests, raised robins own. red-capped robins have been observed particularly aggressive in driving horsfield s bronze cuckoos territories in terrick terrick national park in field study, , no nests found parasitised there.


feeding

the diet consists of insects , other small arthropods. 1 study of red-capped robin faeces conducted near kambalda, western australia, revealed 96% of diet made of beetles, while ants made remainder. other prey recorded include spiders, , insects such grasshoppers including australian plague locust (chortoicetes terminifera), adult , larval butterflies , moths, including geometer moths, dragonflies , damselflies, mantises, antlions, true bugs, including chinch bugs of family lygaeidae , shield bugs, various types of beetles, earwigs, , flies such blow-flies , horse-flies.


the red-capped robin pounces on prey on ground, although can swoop , catch creatures while airborne. less often, gleans (takes prey while perched) in low-lying vegetation, less 3 m (10 ft) above ground. prey commonly on ground when caught, although airborne insects taken. low branch may used vantage point in hunting.








Comments

Popular posts from this blog

Independence United Arab Emirates

History Alexandra College

Management School of Computer Science, University of Manchester