birding-aus

Re; Leucistic Providence Petrels.

To: Paul Walbridge <>, "" <>, Dion Hobcroft <>
Subject: Re; Leucistic Providence Petrels.
From: Mick Roderick <>
Date: Mon, 23 Apr 2012 15:57:12 -0700 (PDT)
Thanks Paul and Dion,
 
Yes, we never really considered Kermadec and Herald as 'serious' contenders but 
still wanted to be sure what it was. The concensus is that it is a Great-winged 
(Grey-faced).
 
Re: the White-necked (dare I say "type"), I'm sourcing images of the underwing 
from the proper photographers who were on-board, as well as size-comparison 
shots. I didn't get any of the latter and admittedly didn't make an effort to 
do so on the day. I did comment to Steve that the flight pattern of the bird 
was much more shearwater-like than typical large Pterodroma flight. But I've 
seen quite a few White-neckeds before and I certainly cannot say I noticed 
anything overly different jizz-wise on this bird.
 
Mick
 

________________________________
From: Paul Walbridge <>
To:  
Sent: Tuesday, 24 April 2012 7:21 AM
Subject: Re; Leucistic Providence Petrels.
  
Hi Dion, Mick, I often see leucistic Providence Petrels up here and it 
shouldn't be confused with belly plumage wear commonly seen later in the season 
(August-October) in worn adult birds. We photographed one on the recent sea 
mounts trip which had a broad crescent of pure white feathers in the breast and 
in addition to the normal whitish face feathering had frosty white feathering 
going up further over the head. The most extreme example I've seen was a bird 
in 1998 (can't relocate photos taken at the time) which had the general plumage 
configuration of a Tahiti Petrel, which no way could be attributed to plumage 
wear. As Dion points out Providence Petrels are almost identical in structure 
to Grey-faced Petrels, not at all like Kermadec and even less like Herald. A 
lot of Kermadecs (but not all) can also show a whitish leading edge to the 
inner wing but Herald shows an extensive pale 'flash' down through the 
secondaries. Cheers - Paul.

********************************************************************************
This email, including any attachments sent with it, is confidential and for the 
sole use of the intended recipient(s). This confidentiality is not waived or 
lost, if you receive it and you are not the intended recipient(s), or if it is 
transmitted/received in error.
Any unauthorised use, alteration, disclosure, distribution or review of this 
email is strictly prohibited.  The information contained in this email, 
including any attachment sent with it, may be subject to a statutory duty of 
confidentiality if it relates to health service matters.
If you are not the intended recipient(s), or if you have received this email in 
error, you are asked to immediately notify the sender by telephone collect on 
Australia +61 1800 198 175 or by return email.  You should also delete this 
email, and any copies, from your computer system network and destroy any hard 
copies produced.
If not an intended recipient of this email, you must not copy, distribute or 
take any action(s) that relies on it; any form of disclosure, modification, 
distribution and/or publication of this email is also prohibited.
Although Queensland Health takes all reasonable steps to ensure this email does 
not contain malicious software, Queensland Health does not accept 
responsibility for the consequences if any person's computer inadvertently 
suffers any disruption to services, loss of information, harm or is infected 
with a virus, other malicious computer programme or code that may occur as a 
consequence of receiving this email.
Unless stated otherwise, this email represents only the views of the sender and 
not the views of the Queensland Government.
**********************************************************************************

===============================

To unsubscribe from this mailing list,
send the message:
unsubscribe
(in the body of the message, with no Subject line)
to: 

http://birding-aus.org
===============================
===============================

To unsubscribe from this mailing list,
send the message:
unsubscribe
(in the body of the message, with no Subject line)
to: 

http://birding-aus.org
===============================

<Prev in Thread] Current Thread [Next in Thread>
Admin

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