Enquiry re status of Brown Gerygone in the Melbourne region

To: "" <>
Subject: Enquiry re status of Brown Gerygone in the Melbourne region
From: George Appleby <>
Date: Tue, 13 Oct 2015 00:28:10 +0000
Hi James.

Further to Martin O'Brien's post on this species (hopefully not too much 
overlap with this post), I'm interested in your Birding-aus post.

I got the impression that the birds were irregularly recorded in the Dandenongs 
(i.e. not every year for the past decade or two), being based on reported 
sightings.  This does not prove that they are resident or always present in the 
region and moving around.  From the very earliest westward records, they seem 
to have been eruptive and to have attempted to breed way outside their previous 
normal range (taken as being up to Mitchell River or East Gippsland generally). 
 To me, it's fascinating to know if the birds have made repeated attempts to 
establish in westward areas and whether they wandered back to their previous 
range or died out, in some cases to be replaced by further wandering birds.  
How or why a rainforest specialist did this is of significant interest.

In the Bunyip area, the BGs do appear to be present in most if not all recent 
years and may be resident - all the records from Steve Davidson and others 
seems to show this.  This potential or probable residency is not surprising 
given the number of records over a few decades from Glen Nayook Reserve near 
Neerim South.  There are a scattering of fill-in records of BGs in the 
foothills of the Great Divide between Neerim South and the Mitchell River but 
no apparent consistency of occurrence.  However, BGs are well entrenched in the 
Strzeleckis (with many records from many locations over a few decades.  Surveys 
by local field naturalists show them to be very well settled in at some 
locations e.g. Foster and Uralla, in some cases being recorded in all seasons 
and/or breeding, being excellent evidence that they are resident and not 
seasonally wandering.  My own observations at Lilly Pilly Gully at Wilson's 
Promontory since at least 2009 (following the initial record by Max 
Breckenridge) sh
 ow them to be present on every visit at any time of the year.

If birders are recording them regularly and in all seasons in the Dandenongs or 
anywhere else west of Mitchell River, please log the records on any database or 
Atlas and let me or Martin O'Brien (see email above) know.  Martin and I may 
get around to further document the range extension of BGs in Victoria.



<BR> Birding-Aus mailing list
<BR> To change settings or unsubscribe visit:

<Prev in Thread] Current Thread [Next in Thread>
  • Enquiry re status of Brown Gerygone in the Melbourne region, George Appleby <=

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 birding-aus 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 archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU