birding-aus

Tern I.D.

To: Jeff Davies <>, 'Roger Giller' <>, 'Birding-Aus' <>
Subject: Tern I.D.
From: Nikolas Haass <>
Date: Tue, 20 Mar 2012 20:10:26 -0700 (PDT)
Hi Jeff & Roger,


Yes, it is worth to have a look at more pictures. Would be nice to see the 
upperparts, too.
To me it looks too heavy-billed and long-necked for a classic Arctic Tern. Also 
I thought that the dark trailing edge of the wing (i.e. tips of p3/p4 in this 
case) is too diffuse for an Arctic Tern. Do you think the secondaries are 
translucent enough for Arctic? What about the dark grey outer rectrices? 

Just a quick thought. Don't have my ornithological literature here at work.


Cheers,

Nikolas

 
----------------
Nikolas Haass

Sydney, NSW


________________________________
From: Jeff Davies <>
To: 'Roger Giller' <>; 'Birding-Aus' 
<> 
Sent: Wednesday, March 21, 2012 1:06 PM
Subject: Tern I.D.
 
I'm wondering if we can discount this bird as a possible 1st year Arctic
Tern.
The left wing is in a really bad way with a big chunk of primaries missing
in the middle.
I strongly suspect that the two fresh primaries that appear to show narrow
dark tips are primaries 3 and 4, if that was the case it is problematic for
Common which typically doesn't show dark tips until around primary 5. Note
also how transluscent the wing is, and how the dark tips don't feed onto the
leading vein of the feathers. Admittedly the wing is rather compromised
however but I thought that Arctic may be worth considering.
Have you got any more images of this bird Roger, no matter about image
quality.

Cheers Jeff.





-----Original Message-----
From: 
 On Behalf Of Roger Giller
Sent: Monday, 19 March 2012 12:00 AM
To: Birding-Aus
Subject: Tern I.D.

Can anyone assist me in identifying this Tern I photographed at Stockton
Breakwater, Newcastle? I was not birding at the time and had no binocs, just
the camera. I just got around to looking at the photos from the day.

.



https://picasaweb.google.com/Roger.Giller/Tern?authkey=Gv1sRgCL-I_52v9pzJjwE
#5721219021550844578



Thanks

Roger

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