Jaeger, Chatfield, Douglas County

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Brian Johnson

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Sep 7, 2016, 11:08:54 PM9/7/16
to Colorado Birds
Sorry for the late notice on this, I had no idea what an exiting find I had. What I thought was a Herring Gull juvenile harassing the ring-bills has turned out to be a jaeger juvenile. Thank you Tony Leukering for pointing this out. I saw it at the Marina Sandspit last sighting was right over the marina at about 10 AM today, 9-7. Hopefully it is still there tomorrow also, some of the photos I got turned out to be a juvenile California Gull, so no Herring, but a jaeger! No Little Gull but this is cool also, a lifer for me. Not so sure of the spices right now, but I am leaning towards Parasitic. And at first I thought I did have a jaeger, turns out my first thought was right.
Brian Johnson
Englewood CO

Brian Johnson

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Sep 7, 2016, 11:11:48 PM9/7/16
to Colorado Birds
It would help if I included a link for the photos, sorry rather giddy right now, http://ebird.org/ebird/view/checklist/S31467141
Brian Johnson
Englewood CO

Joe Roller

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Sep 7, 2016, 11:20:09 PM9/7/16
to Brian Johnson, Colorado Birds
Jaeger ID is tough, but I am happy you found it and it is likely a Parasitic,
which is the least common of the three jaeger species to come through CO in the fall.

The underwing lacks the double white marks of a Pomarine.
The bill favors Parasitic, longish and black only at tip. Would like to see some warm tones, cinnamon in photos.
Long-tailed Jaeger has a stubby bill, half dark.

Way to go, Brian.
Someone will surely get even better photos if it is there Thursday AM.

Joe Roller, 
Denver

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Richard Pautsch

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Sep 7, 2016, 11:24:18 PM9/7/16
to Joe Roller, Carolyn Beach, Brian Johnson, Colorado Birds
I led a Boulder Bird Club trip to Barr Lake this morning.  Around 10:30, a flock of Black Terns appeared out on the lake, and suddenly a large dark bird flew at one of them.  My first thought was Jaeger, but it was gone as fast as it appeared....


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Dick Pautsch
427 Pearl St.
Boulder, CO  80302
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