birding-aus

White ravens

To: Geoff Leslie <>, "" <>
Subject: White ravens
From: Nikolas Haass <>
Date: Thu, 17 Oct 2013 20:47:36 -0700 (PDT)
Hi Geoff,

I like 'just different'! That's certainly correct.
Looks like the birds have dark irides -> juvenile -> rules out progressive 
greying.
Apparently the bare parts are normal plus the obvious melanin synthesis in some 
areas of the plumage -> rules out albinism.
I'd call that leucism (since it is partial you can also call it piebaldism).

Cheers,

Nikolas
 
----------------
Nikolas Haass

Brisbane, QLD


________________________________
From: Geoff Leslie <>
To:  
Sent: Friday, October 18, 2013 8:34 AM
Subject: White ravens
 

There is a pair of pale Little Ravens causing delight and consternation in
the streets of Barham NSW at present. I am not sure if you should call them
albino or leucistic or just different. A friend took these photos of them
mixing without prejudice in the flock, which are not very high quality but
certainly show the birds clearly.
m("N04/sets/72157636665724595/","//www.flickr.com/photos/103213925");">http: I would
be interested to know what this type of aberration is called and how common
it is.







Geoff Leslie

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

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>
  • White ravens, Geoff Leslie
    • White ravens, Nikolas Haass <=
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