The Currawongs and the Magpies
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The Role of Intense Nest Predation in the Decline of Scarlet Robins and Eastern Yellow Robins in Remnant Woodland Near Armidale, New South Wales
The role of intense nest predation in the decline of Scarlet Robins and Eastern Yellow Robins in remnant woodland near Armidale, New South Wales S. J. S. DEBDSI A study of open-nesting Eastern Yellow Robins Eopsaltria australis and Scarlet Robins Petroica multicolor, on the New England Tablelands of New South Wales in 2000-02, found Iow breeding success typical of eucalypt woodland birds. The role of intense nest predation in the loss of birds from woodland fragments was investigated by means of predator-exclusion cages at robin nests, culling of Pied Currawongs Strepera graculina, and monitoring of fledging and recruitment in the robins. Nest-cages significantly improved nest success (86% vs 20%) and fledging rate (1.6 vs 0.3 fledglings per attempt) for both robin species combined (n = 7 caged, 20 uncaged). For both robin species combined, culling of currawongs produced a twofold difference in nest success (33% vs 14%), a higher fledging rate (0.5 vs 0.3 per attempt), and a five-day difference in mean nest survival (18 vs 13 days) (n = 62 nests), although sample sizes for nests in the cull treatment (n = 18) were small and nest predation continued. Although the robin breeding population had not increased one year after the cull, the pool of Yellow Robin recruits in 2001-03, after enhanced fledging success, produced two emigrants to a patch where Yellow Robins had become extinct. Management to assist the conservation of open-nesting woodland birds should address control of currawongs. Key words: Woodland birds, Habitat fragmentation, Nest predation, Predator exclusion, Predator removal. -
Common Birds in Tilligerry Habitat
Common Birds in Tilligerry Habitat Dedicated bird enthusiasts have kindly contributed to this sequence of 106 bird species spotted in the habitat over the last few years Kookaburra Red-browed Finch Black-faced Cuckoo- shrike Magpie-lark Tawny Frogmouth Noisy Miner Spotted Dove [1] Crested Pigeon Australian Raven Olive-backed Oriole Whistling Kite Grey Butcherbird Pied Butcherbird Australian Magpie Noisy Friarbird Galah Long-billed Corella Eastern Rosella Yellow-tailed black Rainbow Lorikeet Scaly-breasted Lorikeet Cockatoo Tawny Frogmouth c Noeline Karlson [1] ( ) Common Birds in Tilligerry Habitat Variegated Fairy- Yellow Faced Superb Fairy-wren White Cheeked Scarlet Honeyeater Blue-faced Honeyeater wren Honeyeater Honeyeater White-throated Brown Gerygone Brown Thornbill Yellow Thornbill Eastern Yellow Robin Silvereye Gerygone White-browed Eastern Spinebill [2] Spotted Pardalote Grey Fantail Little Wattlebird Red Wattlebird Scrubwren Willie Wagtail Eastern Whipbird Welcome Swallow Leaden Flycatcher Golden Whistler Rufous Whistler Eastern Spinebill c Noeline Karlson [2] ( ) Common Sea and shore birds Silver Gull White-necked Heron Little Black Australian White Ibis Masked Lapwing Crested Tern Cormorant Little Pied Cormorant White-bellied Sea-Eagle [3] Pelican White-faced Heron Uncommon Sea and shore birds Caspian Tern Pied Cormorant White-necked Heron Great Egret Little Egret Great Cormorant Striated Heron Intermediate Egret [3] White-bellied Sea-Eagle (c) Noeline Karlson Uncommon Birds in Tilligerry Habitat Grey Goshawk Australian Hobby -
Additional Records of Passerine Terrestrial Gaits
ADDITIONAL RECORDS OF PASSERINE TERRESTRIAL GAITS GEORGE A. CLARK, JR. The varied methods of locomotion in birds pose significant problems in behavior, ecology, adaptation, and evolution. On the ground birds progress with their legs moving either synchronously (hopping) or asynchronously (walking, running) as the extreme conditions. Relatively terrestrial species often have asynchronous gaits, whereas primarily arboreal species are typically synchronous on the ground. Particularly important earlier studies on passerines are Kunkels’ (1962) comparative behavioral survey and Riiggebergs’ (1960) analysis of the morphological correlates of gaits. Over several years I have noted gaits for 47 passerine species in the U.S., En- gland, and Kenya, and have examined many references. I here sum- marize behavioral records for families not mentioned by Kunkel (1962) and also for species with gaits markedly unlike those of confamilial species discussed by him. My supplementary review is selective rather than ex- haustive with the aim of indicating more fully the distribution of gaits among the passerine families. Regional handbooks, life history studies, and other publications contain numerous additional records, but I know of none that negate the conclusions presented here. J. S. Greenlaw (in prep.) has reviewed elsewhere the passerine double-scratch foraging be- havior that has at times previously been discussed in connection with gaits (e.g., in Hailman 1973). VARIATION WITHIN SPECIES Gaits often vary within a species (Kunkel 1962, Hailman 1973, Schwartz 1964, Gobeil 1968, Eliot in Bent 1968:669-670, this study). As an addi- tional example, I have seen Common Grackles (Quisc&s quiscula) hop in contrast to their usual walk. -
Captive Management for Woodhen and LHI Currawong Associated with the Lord Howe Island Rodent Eradication Project
Taronga Conservation Society Australia Captive management for Woodhen and LHI Currawong associated with the Lord Howe Island Rodent Eradication project March 2014 This report details work that occurred in the provision of captive care of Lord Howe Island Woodhen and Lord Howe Island Currawong between July 22 and October 18 2013. It details some of the preparatory work, but concentrates on recommendations for proposed work an order of magnitude larger in 2017. Approved Version: 2.0 March 2014 Page 1 of 10 Taronga Conservation Society Australia 1. Executive Summary The Lord Howe Island Board has been granted approximately $9 million to conduct an eradication program of introduced rats and mice from Lord Howe Island (LHI). This work is jointly funded through the Australian Government's Department of Environment, and the NSW Government's Environmental Trust and was announced on July 15 2012. The eradication will be via the dense distribution of a bait containing brodifacoum in a single 100 day baiting operation. Ship rats are implicated in the extinction of at least five endemic birds and at least 13 invertebrates. They are also a recognised threat to at least 13 other bird species, 2 reptiles, 51 plant species, 12 vegetation communities and numerous threatened invertebrates1. Taronga Conservation Society Australia (Taronga) was contacted in July 2009 about potential involvement in the program. It initially played an advisory role, though with the clear intention of operational involvement should the funding application be successful. A detailed risk assessment is presented which determines the risks to the environment (including wildlife, freshwater and marine habitats), humans, livestock and pets. -
Gymnorhina Tibicen Global Invasive
FULL ACCOUNT FOR: Gymnorhina tibicen Gymnorhina tibicen System: Terrestrial Kingdom Phylum Class Order Family Animalia Chordata Aves Passeriformes Cracticidae Common name Synonym Coracias tibicen Similar species Grallina cyanoleuca, Cracticus nigrogularis Summary Gymnorhina tibicen (the Australian magpie) was originally introduced to New Zealand around the 1860s in an attempt to combat pastoral pests. It is known to be extremely territorial, especially during the breeding season, and is known to assault other avian species and even humans. Magpies potentially threaten a number of indigenous avian fauna, as well as putting humans at risk of injury. view this species on IUCN Red List Species Description The Australian magpie (Gymnorhina tibicen), is a medium-sized ground-feeding passerine found throughout much of the Australian continent. They range from 36-44cm in length and weigh 280-340g with black and white plumage, black heads, wings and underparts together with white napes and shoulders (NRC, 1998). The iris of the adult magpie is red, whereas the juveniles' eyes are dark brown in colour. Minor differences exist between the male and female magpies, though in general, magpies are not considered to be sexually dimorphic (Simpson et al., 1993). Notes Although Australian magpies (Gymnorhina tibicen) have been known to have detrimental impacts on some birds, they can actually be beneficial to others. They do this by attacking and displacing common avian predators, such as harrier hawks and ravens, which in turn provides safe nesting grounds for a number of rural birds (Morgan et al, 2005). Lifecycle Stages The average life span of the Australian magpie (Gymnorhina tibicen) has not been studied in detail, but is estimated to be around 24 years, with some individuals living up to 30 years of age (Reilly, 1988). -
Grand Australia Part Ii: Queensland, Victoria & Plains-Wanderer
GRAND AUSTRALIA PART II: QUEENSLAND, VICTORIA & PLAINS-WANDERER OCTOBER 15–NOVEMBER 1, 2018 Southern Cassowary LEADER: DION HOBCROFT LIST COMPILED BY: DION HOBCROFT VICTOR EMANUEL NATURE TOURS, INC. 2525 WALLINGWOOD DRIVE, SUITE 1003 AUSTIN, TEXAS 78746 WWW.VENTBIRD.COM GRAND AUSTRALIA PART II By Dion Hobcroft Few birds are as brilliant (in an opposite complementary fashion) as a male Australian King-parrot. On Part II of our Grand Australia tour, we were joined by six new participants. We had a magnificent start finding a handsome male Koala in near record time, and he posed well for us. With friend Duncan in the “monster bus” named “Vince,” we birded through the Kerry Valley and the country towns of Beaudesert and Canungra. Visiting several sites, we soon racked up a bird list of some 90 species with highlights including two Black-necked Storks, a Swamp Harrier, a Comb-crested Jacana male attending recently fledged chicks, a single Latham’s Snipe, colorful Scaly-breasted Lorikeets and Pale-headed Rosellas, a pair of obliging Speckled Warblers, beautiful Scarlet Myzomela and much more. It had been raining heavily at O’Reilly’s for nearly a fortnight, and our arrival was exquisitely timed for a break in the gloom as blue sky started to dominate. Pretty-faced Wallaby was a good marsupial, and at lunch we were joined by a spectacular male Eastern Water Dragon. Before breakfast we wandered along the trail system adjacent to the lodge and were joined by many new birds providing unbelievable close views and photographic chances. Wonga Pigeon and Bassian Thrush were two immediate good sightings followed closely by Albert’s Lyrebird, female Paradise Riflebird, Green Catbird, Regent Bowerbird, Australian Logrunner, three species of scrubwren, and a male Rose Robin amongst others. -
The Australian Raven (Corvus Coronoides) in Metropolitan Perth
Edith Cowan University Research Online Theses : Honours Theses 1997 Some aspects of the ecology of an urban Corvid : The Australian Raven (Corvus coronoides) in metropolitan Perth P. J. Stewart Edith Cowan University Follow this and additional works at: https://ro.ecu.edu.au/theses_hons Part of the Ornithology Commons Recommended Citation Stewart, P. J. (1997). Some aspects of the ecology of an urban Corvid : The Australian Raven (Corvus coronoides) in metropolitan Perth. https://ro.ecu.edu.au/theses_hons/295 This Thesis is posted at Research Online. https://ro.ecu.edu.au/theses_hons/295 Edith Cowan University Copyright Warning You may print or download ONE copy of this document for the purpose of your own research or study. The University does not authorize you to copy, communicate or otherwise make available electronically to any other person any copyright material contained on this site. You are reminded of the following: Copyright owners are entitled to take legal action against persons who infringe their copyright. A reproduction of material that is protected by copyright may be a copyright infringement. Where the reproduction of such material is done without attribution of authorship, with false attribution of authorship or the authorship is treated in a derogatory manner, this may be a breach of the author’s moral rights contained in Part IX of the Copyright Act 1968 (Cth). Courts have the power to impose a wide range of civil and criminal sanctions for infringement of copyright, infringement of moral rights and other offences under the Copyright Act 1968 (Cth). Higher penalties may apply, and higher damages may be awarded, for offences and infringements involving the conversion of material into digital or electronic form. -
The Evolution of Cerebrotypes in Birds
Original Paper Brain Behav Evol 2005;65:215–230 Received: June 23, 2004 Returned for revision: July 20, 2004 DOI: 10.1159/000084313 Accepted after revision: September 14, 2004 Published online: March 8, 2005 The Evolution of Cerebrotypes in Birds Andrew N. Iwaniuk Peter L. Hurd Department of Psychology, University of Alberta, Edmonton, Canada Key Words tionships among species, but there is a tendency for spe- Birds W Wulst W Nidopallium W Brainstem W Cerebellum W cies within an order to clump together. There may also Evolution W Prey capture W Cognition be a weak relationship between cerebrotype and devel- opmental differences, but two of the main clusters con- tained species with both altricial and precocial develop- Abstract mental patterns. As a whole, the groupings do agree Multivariate analyses of brain composition in mammals, with behavioral and ecological similarities among spe- amphibians and fish have revealed the evolution of ‘cer- cies. Most notably, species that share similarities in loco- ebrotypes’ that reflect specific niches and/or clades. motor behavior, mode of prey capture or cognitive abili- Here, we present the first demonstration of similar cere- ty are clustered together. The relationship between cere- brotypes in birds. Using principal component analysis brotype and behavior/ecology in birds suggests that and hierarchical clustering methods to analyze a data set future comparative studies of brain-behavior relation- of 67 species, we demonstrate that five main cerebro- ships will benefit from adopting a multivariate ap- types can be recognized. One type is dominated by galli- proach. forms and pigeons, among other species, that all share Copyright © 2005 S. -
Aerolaser Handheld Test Results
Aerolaser Handheld test results Adelaide Airport October 2014 Weather Bird species Quantity Distance to Birds Details conditions of birds birds (m) dispersed 20°C Sunny Galah 20 170 Yes Took a couple of goes to get rid of them but it did work 20°C Overcast Galah 4 35 Yes Flew off as though a shot had been fired over fence and off airport 14°C Cloudy Galah 30 60 Yes Moved but took a while Galah 30 50 to 500 Yes Moved away from RWY12 undershoot, took 10 minutes to move off airfield, laser effectivenesds reduced as sun moved higher 20°C Overcast Galah 20 30 Yes Flew off as though a shot had been fired over fence and off airport 20°C Overcast Galah 40 50 Yes Instant reaction, flock flew off airport over fence intro Burbridge Business Park Australian Magpie 7 50 Yes The did not hang around as soon as the light was next to them, they carried on and flew away 20°C Overcast Australian Magpie 2 30 Yes Took a few seconds to react then flew at speed approximately 150m away and well away from the runway 20°C Overcast Australian Magpie 8 30 Yes Almost instant reactions. Initally flew as a flock about 100m. From that range I again used the laser. The birds flew out of sight over ops store 15°C Cloudy Australian Magpie 4 60 Yes Everytime the laser was pointed at them they moved straight away 15°C Cloudy Australian Magpie 7 70 Yes Moved straight away Australian Magpie 8 100 Yes Moved 24m Australian Magpie 2 50 Yes Moved from RWY05 flight strip 20°C Sunny Australian White Ibis 13 150 Yes Fled off airport straight away 20°C Sunny Australian White Ibis 250 Yes Birds moved from area approximately 50-100m away. -
The Currawongs and the Magpies
Diru’wunan and Diru’wun The Currawongs and the Magpies www.dharawalstories.com Frances Bodkin Gawaian Bodkin-Andrews Illustrations By Lorraine Robertson THE CURRAWONGS AND THE MAGPIES Diru’wunan and Diru’wun A very, very long time ago, Warnan’nan, the People of the Raven became worried. 1 There had not been any rain from the time of the blooming of the Boo’kerrikin to the time of the blooming of the Ker’wan. The creeks and rivers were drying up, and even some of the deepest waterholes were become shallow enough for children to walk across. And at night, the Earth sang a song of thirst, pleading for water to soothe her parched skin. Oftentimes, the People of the Raven would look at the skies, watching and hoping that the Cloud Spirits would come and deliver their bur- den of rain. But the skies remained blue and cloudless. The People of the Raven went to Wiritjiribin, the People of the Lyrebird, to seek their advice, but found that they, too were suffering from lack of rain, although their sweet water came from the Earth herself, and not from the skies like the other peoples. The People of the Lyrebird were kind to the People of the Raven and invited them to take as much sweet water as they needed. The People of the Raven asked why the People of the Lyrebird were so kind when other Peoples had refused to help them. The People of the Lyrebird replied that a long, long time ago, the People of the Raven had provided their black feathered cloaks to the children of the Mull’goh, the Black Swan, and providing the sweet water was the repayment of a kin debt. -
Eastern Australia: October-November 2016
Tropical Birding Trip Report Eastern Australia: October-November 2016 A Tropical Birding SET DEPARTURE tour EASTERN AUSTRALIA: From Top to Bottom 23rd October – 11th November 2016 The bird of the trip, the very impressive POWERFUL OWL Tour Leader: Laurie Ross All photos in this report were taken by Laurie Ross/Tropical Birding. 1 www.tropicalbirding.com +1-409-515-9110 [email protected] Page Tropical Birding Trip Report Eastern Australia: October-November 2016 INTRODUCTION The Eastern Australia Set Departure Tour introduces a huge amount of new birds and families to the majority of the group. We started the tour in Cairns in Far North Queensland, where we found ourselves surrounded by multiple habitats from the tidal mudflats of the Cairns Esplanade, the Great Barrier Reef and its sandy cays, lush lowland and highland rainforests of the Atherton Tablelands, and we even made it to the edge of the Outback near Mount Carbine; the next leg of the tour took us south to Southeast Queensland where we spent time in temperate rainforests and wet sclerophyll forests within Lamington National Park. The third, and my favorite leg, of the tour took us down to New South Wales, where we birded a huge variety of new habitats from coastal heathland to rocky shorelines and temperate rainforests in Royal National Park, to the mallee and brigalow of Inland New South Wales. The fourth and final leg of the tour saw us on the beautiful island state of Tasmania, where we found all 13 “Tassie” endemics. We had a huge list of highlights, from finding a roosting Lesser Sooty Owl in Malanda; to finding two roosting Powerful Owls near Brisbane; to having an Albert’s Lyrebird walk out in front of us at O Reilly’s; to seeing the rare and endangered Regent Honeyeaters in the Capertee Valley, and finding the endangered Swift Parrot on Bruny Island, in Tasmania. -
CURRAWONGS, MAGPIES, RAVENS Do You Know the Difference?
Number 4 May 2010 CURRAWONGS, MAGPIES, RAVENS Do you know the difference? They wake you up early in the morning with their calls, they spread invasive weeds, disperse the contents of rubbish bins, consume baby birds for breakfast and swoop on you unexpectedly! However, they are all part of our shared environment. Pied Currawong Strepera graculina Size: 42–50 cm; Call: loud “currawong”, or deep croaks and wolf whistles. The Pied Currawong is a black bird that can be distinguished by its robust bill, yellow eyes, a white patch on its wing and white tip and underparts of its tail. Both sexes are similar, although the female is smaller and is often greyer on the underparts. The Pied Currawong is found only on the east coast of Australia. It inhabits rainforests, forests, woodlands, inland/coastal scrub, garbage tips, picnic grounds, parks and gardens. Pied Currawongs feed on small lizards, insects, berries, and small and young birds. Large prey items are stored in what’s called a “larder” (a tree fork or crevice) so prey can be eaten over a Pied Currawong period of time. Grey Currawongs Strepera versicolor are also found in the district. Australian Magpie Gymnorhina tibicen Size: 38–44 cm; Call: Rich mellow, organ-like carolling. The Australian Magpie is mostly black, with a prominent white nape (greyer in female), white shoulder and wing band, and a white rump and under tail. The eye colour of the Magpie is red to brown. It is found almost wherever there are trees and open areas. Magpies feed on worms, small reptiles, insects and their larvae, fruits and seeds, and will also take hand outs from humans, a practice certainly not to be encouraged.