I came across the following item on the wires today. Certainly white
ibis seem to have adapted quite well to human settlements.
There already a couple in the new [Brisbane] Roma St Parklands, along
with the other perrenial garbage birds [crows]. Other early park users
included PB and maned ducks. Actually the parklands have some very nice
sections, including a mist shrouded rainforest section [perhaps they
could bring in a few whipbirds from someone's backyard].
Saw a very large flock of corellas around Oxenford yesterday, and jabiru
at Bundamba [Dalys] Lagoon on Saturday.
PESKY COCKATOOS FACING THE CULL
Daily Telegraph (p21, 09-04-2001)
FIFTY years ago they were regarded as rare species. Today they are
the city and fast becoming a public and environmental nuisance as their
continue to increase unabated. Now for the first time, authorities are
considering plans to eradicate and cull both the white ibis and sulphur
cockatoo -- despite their status as protected native birds.
A management plan is now being drafted to look at eradication methods
which could include special hormones in food or the disruption of eggs
Special permits have already been given to Centennial Park, Botanic
Taronga Zoo to eradicate ibis by a method involving the destruction of
Authorities admitted the plan may attract criticism but claimed it was
necessary for the long term survival of the species as well as pest
Macquarie University is at the same time conducting the first ever
study into cockatoo numbers in Sydney to determine whether they need to
culled or controlled as well.
"It's not a hard question to deal with," said National Parks and
Service officer Geoff Ross who is heading the campaign.
"It is a conservation decision ... if we did nothing about bird
could become a big problem.
"We are looking at issues of ibis and cockatoos and there are a lot of
areas having problems with these birds.
"If the ibis are seen to be above levels where they become sustainable,
to ask how many we need to remove. They are not only having an impact on
human community but also on other wildlife communities. "
The NPWS is working with the RSPCA to ensure any culling is conducted
Other agencies such as the zoo, Botanic Gardens and Centennial Park
also involved in the program.
The birds are responsible for pushing out other wildlife, water
through their droppings, damaging trees and "interfering with people".
When populations exceed sustainable levels disease can occur,
future of the species itself and spreading it into other species.
Mr Ross claims the ibis in particular has managed to adapt to an urban
environment and have changed their breeding behaviour as a result.
A spokesperson for the Centennial Park Trust confirmed it was looking
culling the birds which numbered up to 850 and had become a major pest.
"But we won't do anything that isn't humane," the spokesperson said.
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