birding-aus

help with ID and illusions of barred tails

To: "Jacqui" <>, "Birding-aus" <>
Subject: help with ID and illusions of barred tails
From: "Philip A. Veerman" <>
Date: Wed, 15 Dec 2004 21:52:29 +1100
Hello Jacqui,
 
I can advise on your question but I can't advise you at all whether they were Goldfinches, as there are many possibilities that may fit what you actually described. However if you think that is what they are then you are probably correct. The same question was asked about Pied Currawongs in Canberra and the answer is most likely the same as for your Goldfinch question. The tail was probably not barred but there is an explanation.
 
Here it is:
 
 
(A) Hi Paul,
It is usual at this time of year and there are a few around my place like this. It is because each tail feather is black with a white tip. During moulting, the inner tail feathers grow first, followed by the outer ones. Therefore whilst the inner tail feathers are full grown, the outer ones are still part grown. Also the tail shape is rounded or wedge-shaped, rather than forked and so you get that barred effect, there is still just the white tip to each feather but the tips are layered rather than aligned.
Actually I think they are Geelong Currawongs as the effect is barred rather than striped.
Philip.
 
(Q)-----Original Message-----From: Fennell, Paul <>To: COG-l (E-mail) <> Date: Monday, 5 February 2001 16:48
Subject: [cog-l] Collingwood Currawong

I am looking directly at a Pied Currawong from my 5th floor office window in
Civic and I notice it's tail is barred in black and white.

The tip is about 2 cm of white, with about 0.5 cm of black above it,
followed by another 3 cm or so of white, then a bit more than that of black,
then about the same again of white, the same again of black and then the
white patch  under the upper tail. 

It seems the black section of the tail is broken up into three black bands
intersected by two white bands.

I haven't noticed this before on Currawongs.  Is it usual?

Paul Fennell
-----Original Message-----From: Jacqui <> To: Birding-aus <> Date: Wednesday, 15 December 2004 11:09
Subject: [BIRDING-AUS] help with ID

Whilst at Devil Bend Reservoir yesterday, we viewed what we thought were
immature goldfinches. The yellow on the wings was just developing, bill bone
coloured and chest patchy dusky. However one of them  had quite distinctive
black and white barring all along the tail shafts. We could see no reference
to this barring  in field guides.
Were they goldfinches?

Jacqui Sheppard
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