birding-aus

LOOKING FOR GANG-GANG COCKATOOS IN LANE COVE VALLEY, SYDNEY - SINCE DECE

To: Martin Butterfield <>, birding aus <>
Subject: LOOKING FOR GANG-GANG COCKATOOS IN LANE COVE VALLEY, SYDNEY - SINCE DECEMBER 2016
From: Tom Wilson <>
Date: Sun, 6 Aug 2017 10:38:02 +0000
Hi Martin (& others who have responded)
it’s not my local patch so although I visit, I am not a daily observer.  
However, my understanding is that the population in Lane Cove Valley was only 
ever small (Alan Morris – if you read this you might know more?).  
I agree that no reports in 8 months might be a bit early to make the call, but 
it also seems sensible to put out a request to see if they have been around.  
The records for the last 4 years or so that the council bloke referred to 
seemed pretty sparse – of course that that might be a function of not many 
birders and not many observations. To counter that, I suggested to the council 
bloke that he put an advert in the local free newspapers for the areas around 
the valley (with a picture) asking “has anybody has seen this parrot?”
If it is a small population, one belt of something nasty could be the cause – 
certainly the last bird I saw (as opposed to heard) looked in extremely poor 
condition – a male with about 1/3 of his head plumage missing.
So I hope you are right that 8 months is a bit soon – but then that is why I 
put the request out in the first place.
Cheers
Tom

From: Martin Butterfield 
Sent: Sunday, August 6, 2017 4:34 PM
To: Tom Wilson 
Cc: birding aus 
Subject: LOOKING FOR GANG-GANG COCKATOOS IN LANE COVE VALLEY, SYDNEY - SINCE 
DECEMBER 2016

Tom

Surely an 8 month period is far too short to start thinking about "extinction" 
?  That isn't even a breeding season.

Perhaps they've found better feed somewhere else and will be back in a little 
while?

Martin

Martin Butterfield 
http://franmart.blogspot.com.au/ 

On 6 August 2017 at 15:24, Tom Wilson <> wrote:

  Hi All
  Through a referral from Kurtis Lindsay as an eBird and Birdline moderator, I 
was recently approached by a conservation officer from Ku-Ring-Gai Council with 
disturbing news that the last reported sighting of a Gang-gang Cockatoo in the 
Lane Cove Valley (northern Sydney) was in December 2016.  It has been surmised 
that they are (sadly) locally extinct in the valley.  Unfortunately, I had no 
more recent records that would prove this to be incorrect (my last record was 
mid-2016 near Blackbutt Avenue in Pennant Hills).
  If you have more recent evidence (ie after December 2016) that would help 
show that this is not the case, please can you forward as much detail as 
possible to me.  I will collate and forward all information to the council 
officer. Ideally, please can you provide as much of the following information 
as you can:
  - Date and Time;
  - Exact location in the Lane Cove Valley;
  - Number and Mix of Birds (ie Male/Female/Young);
  - Sighted or Heard Only;
  - Activity Observed (including species of tree being used if feeding); and
  - Any Other Relevant Comments.
  You can forward your information to me at the above email.  Let’s hope we can 
prove that they are still about.
  Cheers
  Tom Wilson
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