Fw: [BIRDWG01] Jaeger Questions

["Tim Avery" <tanager at timaverybirding dot com>]

----- Original Message ----- 
From: GreatGrayOwl@AOL.COM 
To: BIRDWG01@LISTSERV.ARIZONA.EDU 
Sent: Sunday, September 11, 2005 8:39 PM
Subject: Re: Jaeger Questions


Hi all:

Again, I feel that this bird is a Long-tailed Jaeger.  No, I'm positive 
that this bird is a juvenile Long-tailed Jaeger.  It is amazingly 
similar to Colorado's current Long-tail, pictures of which can be viewed 
on the Colorado Field Ornithologists' website
(http://www.cfo-link.org/birding/photos.php).

The near lack of strong pale tips/fringes to the primaries, the strong, 
even, and horizontal black-and-white barring on the undertail coverts, 
and the strongly white shafts to P9 & P10, with no other shafts of 
similar paleness through most of their length all point to LTJA and away 
from PAJA.

Also, though it would certainly be possible to have a juv Parasitic at 
such a latitude at an inland location on the date, I think that LTJA is 
still the more likely of the two smaller jaegers to show up in such a 
place so early in the fall.

Sincerely,

Tony Leukering
Brighton, CO



In a message dated 9/11/2005 6:25:41 PM Mountain Standard Time, 
tanager@TIMAVERYBIRDING.COM writes:
  On Saturday September 10, Steve and Cindy Sommerfeld discovered what 
appeard
  to be a juvenile Parasitc Jaeger at Willard Bay State Park in Box 
Elder
  County Utah.  This morning the bird was sitll in the same area, but 
after
  watchign it for an hour I was not positive on the ID.  I have ronly 
seen an
  Adult Parasitic and 3 other juvenile birds on a pelagic that I did not 
ID. 
  I have no experience with this species and am curious as to if this 
bird is
  a PArasitic or a Long-tailed.  

  The bill points to PAJA, and the wings are intermediate.  The body 
looks
  alot like an intermediate LTJA.  Any information that can be given 
will be
  much appreciated:

  http://www.timaverybirding.com/jaeger/image-176.jpg

  http://www.timaverybirding.com/jaeger/image-031.jpg

  http://www.timaverybirding.com/jaeger/image-045.jpg

  http://www.timaverybirding.com/jaeger/image-209.jpg

  http://www.timaverybirding.com/jaeger/image-117.jpg

  http://www.timaverybirding.com/jaeger/image-138.jpg

  http://www.timaverybirding.com/paja_01.jpg

  http://www.timaverybirding.com/paja_02.jpg

  Thanks in advance for any info!

  Tim Avery
  http://www.timaverybirding.com
  Salt Lake City, Utah


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