Greg,
I was nearly going to put a rider on my post saying that this post
has nothing to do with Canada Geese. I by no means meant that the
Canada Geese geese on the NSW south coast should be spared. I really
do not why AQIS ever allowed the importation of the domestic stock
currently held by wildfowl collectors ( not to mention the other
potential pest species in collections) If any one does catch them I
recommend Walnut and Tarragon stuffing, with spiced red cabbage and
sauté potatoes, as they go very well with Roast Goose.
As for Black Swans in Canada, I think that they are already there.
Interestingly enough, they will hybridise with Canada Geese, another
reason to keep them on a short leash.
Cheers,
Carl Clifford
On 10/01/2008, at 1:20 PM, Gregory Little wrote:
Carl
Regardless of the semantics around the words feral or introduced, I feel
the Canada Goose does not belong here and so should be removed
especially considering it is in low numbers and therefore relatively
easy to eradicate. We do not need any more introduced species here and
there should be no justification for not removing them. The same would
apply if some dill introduced Black Swans to Canada, they, the Black
Swans, should be eradicated.
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 Carl Clifford
Sent: Thursday, 10 January 2008 12:28 PM
To: Birding-Aus Aus
Subject: What is a Feral?
Dear All,
When does a species become a feral and when does it become a native?
Most Australian birders would regard the Cattle Egret as a native,
but shouldn't it be classed as a feral? It was introduced, possibly
unsuccessfully, to Derby WA in 1933. It then appeared, in large
numbers in Oenpelli NT in 1948 and reached Colac Vic in 1949 and now
it is pretty well ubiquitous. As the species is highly mobile and
considerable numbers move between northern Australia and the
Indonesian Archipelago, it is potentially a serious vector for avian
diseases. Should they be culled?
Hanzab describes a colony of Cape Barren Geese at Tidbinbilla ACT as
feral (V 1-b p1196). Should they be culled, after all they do compete
with other native grazing water birds for an often scarce food
rescource?
Off the Avian track, but equally interesting, the Dingo. This man
assisted migrant has caused considerable damage to the numbers of
native mammal species and may very well have caused the loss of some
species. It is regarded as a native, but meets many of the criteria
for a feral, so what is it?
I would be interested in peoples opinions on this. I find that the
line between feral and native a very wavery one which appears to be
drawn nearly at random.
Carl Clifford
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