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David Griffin
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Walden Reservoir
Jackson, Colorado, United States
Search this location, Illustrated Checklist
- Age
- Unknown
- Sex
- Unknown
- Behaviors
- Breeding
- Tags
- No bird;
Media notes
One of three black terns at Walden Reservoir, Jackson County, Colorado, 15 September 2016
Observation details
Three foraging low over water in south-central portion of reservoir. Small terns with pointed wings, darkish ashy-gray overall with light underneath. Four common nighthawks foraging with them. Photos show dark 'spur' on side of breast in front of wing and short tail. I had a single black tern yesterday at MacFarlane Reservoir in southern Jackson County.
Technical Information
- Model
- DMC-FZ200
- f-stop
- f/2.8
- Focal length
- 108 mm
- Shutter speed
- 1/1300 sec
- ISO
- 100
- Flash
- Flash did not fire, auto
- Original file size
- 4,398KB
- Dimensions
- 4000 x 3000