Iceland Gull (Thayer's) - Whitney Mortimer
Report

Contributor

Date

Location

Doran Regional Park - entrance pond to jetty
Sonoma, California, United States
Media from this location Illustrated Checklist
Map
Map Coordinates: 38.3146057, -123.0438066
Age
Not specified
Sex
Not specified

Observation details

This bird stood out because of how pale and how the bill was mostly dark. Went home to study it and we think it is a Thayer’s. Smaller than nearby Western gulls and very light overall with some speckling on the back. Almost all dark bill is characteristic for juvenile Thayer’s. Dark eye smudge also seen. Slightly bulky around the tip. Photos.

Technical information

Model
DSC-RX10M4
Lens
8.8-220mm f/2.4-4.0
ISO
100
Focal length
220 mm
Flash
Flash did not fire
f-stop
f/4.0
Shutter speed
1/1000 sec
Dimensions
1353 pixels x 1015 pixels
Original file size
515.44 KB