American Herring x Glaucous-winged Gull (hybrid) - Paul Saraceni

ML646381453

American Herring x Glaucous-winged Gull (hybrid) Larus smithsonianus x glaucescens

Report

Contributor

Date

Location

Ocean Beach-- across from Oceanside Water Polution Plant (FOR STATIONARY SEAWATCH ONLY)
San Francisco, California, United States
Media from this location Illustrated Checklist
Map
Map Coordinates: 37.7294017, -122.5069034
Age
Not specified
Sex
Not specified

Observation details

Likely a significant undercount. A number of Herring-like gulls with primaries not quite dark enough, mottled head markings, and appeared bulkier and larger-billed than Herring -- and Thayer's -- Gulls.

Technical information

Model
Canon EOS R5
Lens
RF200-800mm F6.3-9 IS USM
ISO
400
Focal length
800 mm
Flash
Flash did not fire
f-stop
f/10.0
Shutter speed
1/1000 sec
Dimensions
1101 pixels x 1097 pixels
Original file size
248.94 KB