Great Black-backed Gull - Harrison Taylor
Report

Contributor

Date

Location

Steelworkers Park (#523, including IL portion of breakwater and Lake Michigan)
Cook, Illinois, United States
Media from this location Illustrated Checklist
Map
Map Coordinates: 41.7394892, -87.5297499
Age
Not specified
Sex
Not specified

Media notes

The Greater Black-backed Gull is in the center of this photo. It's back is darker than the other gulls.

Technical information

Model
NIKON D5100
ISO
200
Focal length
300 mm
Flash
Flash did not fire
f-stop
f/6.3
Shutter speed
1/640 sec
Dimensions
4928 pixels x 3264 pixels
Original file size
3.1 MB