Contributor
Oscar Johnson Media from this contributor Profile
Date
Location
Gaffery Rd.--Recology Plant and Delta-Mendota Canal
Stanislaus, California, United States
Media from this location Illustrated Checklist- Age and sex
- Juvenile, Unknown sex - X
Observation details
A surprising number for so far inland and this far south. Number of individuals by age classes calculated based on overall percentages of each age class; 85% hatch year, 5% 2nd year-4th year (i.e. "subadult"), and 10% adult. We spent a large amount of our time here simply photographing Thayer's Gulls, so many (hundreds) photos obtained.
Technical information
- Model
- Canon EOS 40D
- ISO
- 400
- Focal length
- 320 mm
- Flash
- Flash did not fire, auto
- f-stop
- f/5.6
- Shutter speed
- 1/1000 sec
- Dimensions
- 1024 pixels x 683 pixels
- Original file size
- 114.8 KB