It should be noted Ibis are considered a pest species on the gold coast and
nests are actively
removed and the egss destroyed ine the breeding season for a number of years.
Quoting David Berg <>:
> I agree, one of the sickest items of cruelty to animals I've read in
> a while. And its carried out by government bodies that should be
> looking after native species. Ibises for ever!
>
> Dave Berg
>
> storm <> wrote:
> Alan, Greg
>
> It's reports like this that make the general public think it's ok to
> rubbish
> Ibis. This is about a 'humane' way to kill off the eggs of an
> 'aggressive'
> species. I can't think of anything more aggressive than a species
> that will
> kill off another's young.
>
> http://www.abc.net.au/news/stories/2007/10/11/2056320.htm
>
> The Australian ibis, with its white body plumage, black head and neck
> and
> long curved bill, is a common bird in north and east Australia and
> more
> often than not, it is near a rubbish bin near you.
>
> The reason for that is that its usual feeding and breeding areas in
> the
> western wetlands have dried out.
>
> But researchers have found a way they say that is 100 per cent
> effective in
> controlling the nuisance species and it involves common cooking oil,
> but not
> a cooking pot, thankfully.
>
> The same method can be applied to other bird pests like starlings,
> pigeons
> and Indian mynas.
>
> Sydney's Centennial Park is a swathe of green in the heart of the
> city but
> at the moment it is also a hot bed of hormones.
>
> On a small island in the middle of one of the park's lakes, several
> hundred
> ibis are busy attracting a mate.
>
> They are honking and lifting their wings to reveal a red streak, a
> sign that
> the bird is ready to breed.
>
> Professor Joan Dawes is from Pestat, a group that develops ways to
> control
> pest species.
>
> She first came across egg oiling in the United States during a visit
> to the
> Department of Agriculture.
>
> The Americans had just finished trials using everyday cooking oil to
> coat
> the eggs of Canada geese and seagulls.
>
> The idea is that the baby bird is starved of oxygen inside the egg
> and the
> egg never hatches.
>
> "They're quite big and quite aggressive birds. They'll eat anything
> at all
> and they'll also just walk up to little kids and take a sandwich or
> an
> ice-cream out of their hands and probably peck them in the process,"
> she
> said.
>
> "So it was a particularly easy, cheap, simple process and I thought
> that it
> might be worth trying here in Australia."
>
> John Martin is one of the park rangers in Sydney's Centennial Park
> and he
> has had a 100 per cent success rate on his first trial of egg
> oiling.
>
> Birds nesting on one island in the park had their eggs sprayed with
> the oil
> and none of them hatched.
>
> The birds also did not return to that island for the next breeding
> season.
>
> "The common technique used is nest and egg destruction and when you
> do that
> the birds - what we've observed is that ibis commonly just re-nest,"
> he
> said.
>
> "So it's a lot of effort for them to build another nest and then lay
> another
> clutch of eggs, so with the oiling technique it actually stops them
> from
> laying another clutch of eggs.
>
> "They continue to incubate the eggs which they've already laid, but
> they're
> not going to hatch."
>
> Professor Dawes says the only thing that can be concluded is that as
> a
> social, nesting species they communicate with each other.
>
> "Word got out that this was not a good place to nest and that they
> weren't
> going to rear young if they did nest there," she said.
>
> But it seems that warning message was only passed on among ibis, not
> other
> bird species.
>
> On the trial island, cormorants are now breeding in fig trees and a
> camphor
> laurel tree 20 metres above where the ibis had their eggs oiled.
>
> The researchers also say egg oiling may be a cheap and effective way
> for
> city councils to eradicate problem birds like the ibis and
> potentially
> starlings and pigeons.
>
> "One of the advantages of this is that it's a food oil and so there
> are
> absolutely no health or safety or environmental consequences to its
> use,"
> Professor Dawes said.
>
> "You could just go to the supermarket and buy the canola oil and use
> that."
>
> -----Original Message-----
> From:
> Behalf Of Gregory
> Little
> Sent: Thursday, 10 January 2008 4:38 PM
> To: 'alan morris';
> Subject: RE: [Birding-Aus] White Ibis studies in Sydney Region
>
>
> Gooday Alan and all
>
> Just as an aside re Ibis, I was recently out on a daily walk along
> the
> back of Maryland on the edge of Hexham Swamp (near Newcastle, NSW)
> and
> as I passed a fellow walker I commented on how good it was to see
> the
> White Ibis nesting in a patch of nearby Paperbarks. He answered very
> shortly "that they are a pest and steal food and bother people". I
> assumed he meant those Ibis in Sydney at the Zoo and Hyde Park etc.
>
> Greg Little
>
> Greg Little - Principal Consultant
> General Flora and Fauna
> PO Box 526
> Wallsend, NSW, 2287, Australia
> Ph 02 49 556609
> Fx 02 49 556671
> www.gff.com.au
>
> -----Original Message-----
> From:
> On Behalf Of alan morris
> Sent: Thursday, 10 January 2008 4:17 PM
> To:
> Subject: [Birding-Aus] White Ibis studies in Sydney Region
>
> Hi Birders,
> Can anyone tell me who to contact in respect to the colour-banding
> project
> of breeding White Ibis in the Sydney region?
>
> A contact of mine has been recording band numbers and colours, and
> wants to
> know to whom he should pass on the details?
>
> Alan Morris
>
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