Great Black-backed Gull - Eric Walters
Report

Contributor

Date

Location

Illinois Beach SP--South Unit
Lake, Illinois, United States
Media from this location Illustrated Checklist
Map
Map Coordinates: 42.4203, -87.8078
Age and sex
Immature Unknown sex - 1
Behaviors
Flying

Media notes

Great Black-backed Gull

Observation details

1st winter plumage.

Technical information

Model
Canon EOS 50D
ISO
250
Focal length
400 mm
Flash
Flash did not fire
f-stop
f/9.0
Shutter speed
1/640 sec
Original file size
7.32 MB