Documentation of Boreal Owl

Observer Information

Reporter:  Bryan Gieszl  PO Box 6939,   Snowmass Village, CO  81615
Other Observers:  Megan, John, and Lucy Waschbusch--they prefer to remain anonymous

Species, Date, Time and Location Information

Species:  Boreal Owl
First Date/Time:  2/9/2014 1:30:00 PM
Last Date/Time:  2/10/2014 1:00:00 PM
Duration (total time in view):  1 day
County:  Montrose
Specific Location:  Montrose
Number:  1
Age:  Adult
Sex:  Unknown
Plumage:  Breeding


Montrose town--residential neighborhood

Viewing Conditions

Optics:  none
Distance:  bird in hand

Description of the Bird

Please see the photographs of the dead bird.  The specimen is in the possession of the Montrose office of the Colorado Department of Parks and Wildlife.

Similar Species Discussion

Northern Saw-whet Owl--eliminated due to bill color, size, spotting on breast and head did not form a streaked pattern
Burrowing Owl--eliminated by long tail, facial pattern, spotting on breast didn't form a pattern of barring, and spotting on head
Northern Hawk Owl--eliminated by size, tail length.

Really, in hand, the identification didn't seem difficult

Resources Used

Internet search for photos, Sibley Guide to Birds, Handbook of the Birds of the World volume 5, feedback via email from Western Slope Birding Network members

Previous Experience

I have never before seen an Aegolius owl.


Review of photos

Materials Available

Photographer: Bryan Gieszl

Photos |


Date Documentation Submitted

2/10/2014 9:45:00 PM
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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