Ringbarking by Galahs: a further thought

To: " List Mailing" <>
Subject: Ringbarking by Galahs: a further thought
From: Isobel Crawford <>
Date: Wed, 29 Jul 2015 08:00:39 +0000
I've been mulling over this during the day, and remembered something else pertinent, which is that gums (i.e. smooth-barked eucalypts) form hollows more readily than rough barked eucalypts. The only depredations on rough barked eucs that I have noticed have been by parrots etc. seeking wood boring larvae.

My assumption (without the benefit of any research!) has always been that this ringbarking kills the tree and that dead trees produce hollows more readily than living ones, with the passage of time. 

The other side to this is that living trees are easier for competently-billed species to gouge a hollow in, because the living tissue is softer. So perhaps these Galahs are involved in both of these processes?

Isobel Crawford

Australian Botanical Surveys,
POB 6031,
O'Connor ACT  2602.

02 6257 1860
0429 798 887

On 29/07/2015, at 9:11 AM, "Geoffrey Dabb" <> wrote:

From: Geoffrey Dabb [] 
Sent: Tuesday, 28 July 2015 1:27 PM
Subject: FW: [canberrabirds] Ringbarking by Galahs
See below John.  Furthemore Elizabeth can tell you a thing or two about the current Great Bandaging Project of Wylie Street
-----Original Message-----
From: John Brannan  
Sent: Tuesday, 28 July 2015 11:15 AM
To: COG List
Subject: Ringbarking by Galahs
Friends of mine showed me a photo the other day of a mature eucalypt (E. rossii from the look of it) that has been almost completely ringbarked over the last few weeks by a pair of Galahs. The ringbarking is mid-way up the main trunk and immediately below a hole they’ve been enlarging, presumably to use for nesting (but which is also being used by a possum).
Is this a common practice? Do we know their reasons for doing this?
(And no, I haven’t asked the Galahs myself.) John
This is the email announcement and discussion list of the Canberra Ornithologists Group.
Emails posted to the list that exceed 200 kB in size, including attachments, will be rejected.
When subscribing or unsubscribing, please insert the word 'Subscribe' or 'Unsubscribe', as applicable, in the email's subject line.

<Prev in Thread] Current Thread [Next in Thread>
  • Ringbarking by Galahs: a further thought, Isobel Crawford <=

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the Canberra Ornithologists Group mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the list contact David McDonald, list manager, phone (02) 6231 8904 or email . If you can not contact David McDonald e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU