Documentation of Pomarine Jaeger

Observer Information

Reporter:  Randall Siebert  1426 Cypress Circle,   LAFAYETTE, CO  80026-1246
Other Observers:  Many reported it via cobirds. I do not remember who they were.

Species, Date, Time and Location Information

Species:  Pomarine Jaeger
First Date/Time:  11/6/2003 9:00:00 AM
Last Date/Time:  11/6/2003 10:00:00 AM
Duration (total time in view):  60
County:  Jefferson
Specific Location:  Chatfield State Park
Number:  1
Age:  Unknown
Sex:  Unknown
Plumage:  Breeding


Reservoir - open water

Viewing Conditions

Optics:  Leica 77mm
Light:  Overcast

Description of the Bird

I read about this bird on cobirds and went to see it.
After nearly 11 years I remember nothing more than that I agreed with the identification of Pomarine Jaeger.
I made no written records and my digiscoped photos must serve as my memory.

Similar Species Discussion

The other jaegers were considered. The plumage eliminated Long-tailed
Other observers had determined that it was Pomarine and when I saw it I agreed.
But I no longer remember details of how I elimintated Parasitic.

Resources Used

Reports on cobirds. Sibley, maybe other books.
It was 10+ years ago.

Previous Experience

This was the first time I had seen this species.
I had seen Parasitic Jaeger before in Alaska and New Zealand.


Review of photos

Materials Available

Photographer: Randy Siebert

Photos |


Date Documentation Submitted

8/5/2014 9:33:00 AM
Click left or right edges of photos to move through all; click outside image to close

Location Map

The marker on the map shows an approximation of the location of this report. The marker is generated using a prioritized Logic base:
1) If the observer has entered coordinates, they will be shown.
2) No specific coordinates are available but the location is mappable.
3) A generic location with no specific coordinates is mapped to the center of the reported county.

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