ML20527701
Contributor
Ted Floyd Media from this contributor Profile
Date
Location
Stearns Lake
Boulder, Colorado, United States
Media from this location Illustrated Checklist- Age
- Not specified
- Sex
- Not specified
Media notes
I considered this grouplet to be about 5% of the total flock. If so, then there were ca. 340 grackles in total. I lowballed that extrapolation by a factor of 2.
Observation details
Stearns Lake is the site of an annual (wintertime) roost of Great-tailed Grackles, and counts like this aren't uncommon here from mid-autumn through early spring. This count is a lowball estimate; see photo.
Technical information
- Model
- Canon PowerShot SX50 HS
- ISO
- 80
- Focal length
- 128.8 mm
- Flash
- Flash did not fire, auto
- f-stop
- f/5.6
- Shutter speed
- 1/250 sec
- Dimensions
- 4000 pixels x 3000 pixels
- Original file size
- 2.03 MB