birding-aus

Flycatcher ID help

To: Chris Corben <>
Subject: Flycatcher ID help
From: Joseph Morlan <>
Date: Sat, 17 Jan 2015 17:35:37 -0800
Hi Chris,

I'm pretty sure the central rectrices are missing.  I had a private comment
from one expert who thought there were only four rectrices, but I'm pretty
sure I see five on the left side.  Originally I thought maybe r6 was hidden
behind r5, but now I think r1 is missing and r6 is barely showing.  The
photo I'm working with is the blurry one with the bird flying away.  If so,
I think r6 is only marginally shorter than r5.  

http://fog.ccsf.edu/~jmorlan/Australia/FlycatcherP1190562.jpg

Thanks. 

On Sat, 17 Jan 2015 18:50:10 -0600, Chris Corben <>
wrote:

>Hi Martin,
>
>So which photo are you thinking shows you the length of the outer 
>rectrix? What exactly are you judging that from?
>
>It would be a lot better if we could make the call on more than one, 
>uncorrelated feature, though that may not be an option. May well be a 
>Leaden, but I'm not sure it's that simple.
>
>Cheers, Chris.
>
>
>
>On 1/17/2015 4:49 PM, martin cachard wrote:
>> hey Chris,
>> the outer retrices would ve markedly graduated as well if it were a 
>> Vroad-villed... forget vout the lores, the tail shows more tham emough 
>> to ve diamostic for Leadem...cheers m.cachard
>>
>> > Date: Sat, 17 Jan 2015 06:48:44 -0600
>> > From: 
>> > To: 
>> > Subject: Re: [Birding-Aus] Flycatcher ID help
>> >
>> > I'm not sure it is quite that simple!
>> >
>> > I thought the pale lores were a female feature, not found in males.
>> >
>> > As for the tail, I am having trouble figuring out exactly what is going
>> > on, but for sure, it is the OUTER rectrices which might be completely
>> > white in Broad-bills, not the centrals. But is that a consistent
>> > feature? And is the outer Rectrix visible anyway? There does seem some
>> > suggestion of a sharply defined white tip on the right side, which 
>> might
>> > not be so good for Leaden.
>> >
>> > That weird shot of it with the wing spread is rather confusing with
>> > respect to the tail, but does seem to suggest that either a lot of
>> > rectrices are missing, or the central feathers are growing in, which
>> > might counter the argument about tail shape. I am just not sure what
>> > those feathers on the left are - rectrices or the far wing turned 
>> inside
>> > out!
>> >
>> > Is the appearance of the gape enough to be sure it is a young bird?
>> >
>> > I think it could do with some more discussion!
>> >
>> > Cheers, Chris.
>> >
>> >
>> > On 1/16/2015 10:40 PM, Graeme Chapman wrote:
>> > > Hello Joseph,
>> > >
>> > > The first of your pics is remarkably good for a hand-held 
>> digiscope setup.
>> > >
>> > > Martin is correct - the lack of pale lores and the even length 
>> rectrices make it a Leaden Flycatcher - Broad -bills have graduated 
>> tail feathers and pale lores.
>> > >
>> > > The heavily tumoured gape make it a very young bird. An ideal 
>> diagnostic picture would have been with the bird front-on and we would 
>> have seen the central rectrices which are all white in the Broad-billed.
>> > >
>> > > There's a good range of pictures dealing with this issue on my 
>> website - www.graemechapman.com.au
>> > >
>> > > Cheers
>> > >
>> > > Graeme Chapman
>> > > <HR>
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>> > >
>> >
>> >
>> > --
>> >
>> > Chris Corben.
>> >
>> >
>> > <HR>
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-- 
Joseph Morlan, Pacifica, CA
"It turns out we're very good at not seeing things" - Jack Hitt

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