FreeLists / birdky / [birdky] Pomarine Jaeger Images

[David Roemer <dlroemer@xxxxxxxxx>]

Joanie and I spent most of Saturday at Freeman Lake in
Elizabethtown enjoying and photographing the Pomarine
Jaeger.  I returned on Sunday and spent the afternoon
attempting to obtain more images.  It is nice having
such a great bird on a small lake for excellent
viewing.  Twice on Saturday we watched as the bird
chased a crow in the absence of gulls attempting to
force it to disgorge food, and the crow sought refuge
by landing in the woods.  I obtained video of one of
the pursuits.

Dr. Gary Ritchison has published images of the bird
obtained this weekend on the KOS site with links
below.  The first will take you directly to the jaeger
page, the second to the KOS Photo Page.

http://www.biology.eku.edu/kos/pomarine_jaeger.htm

http://www.biology.eku.edu/kos/photos.htm

The images of the bird on the water are digiscoped
photographs while the flight images are stills lifted
from video.  These depict the bird from various angles
illustrating features or a combination thereof which
identify it as a Pomarine Jaeger.  These include:

* Strongly bicolored bill, relatively long and heavy
  and approximately 1/3 dark.  The contrast of the
  pale bill with the dark face was evident at a 
  distance.

* Lack of pale area just above base of bill which
  Parasitic often shows

* Relatively large rounded head 

* Uniformly colored head/unstreaked nape

* Lack of distinct cinnamon or rufous tones

* Broad-based wings evident in flight

* Barred underwing coverts paler than flanks

* Pale bases to the primary underwing coverts
  very obvious in flight

* Broad rounded central tail feathers

* Heavy-bodied apparent in flight

Congratulations to Richard Healy for discovering the
bird.

David L. Roemer
Bowling Green, Ky.



 





                
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