Iceland Gull (Thayer's)

Larus glaucoides thayeri

ML46213871


©
Brian Quindlen
Search this contributor Profile

eBird Checklist S33855741
SE Chester Co. Refuse Authority (SECCRA) (restricted access)
Chester, Pennsylvania, United States
Search this location, Illustrated Checklist
Latitude and Longitude 39.8655, -75.8442 Map

Age
Adult
Sex
Unknown
Behaviors
Breeding
Tags

Comments

THGU

Observation details

An adult bird initially spotted by Zach Millen. Observed smaller bill weight than nearby HEGU with a smaller, more rounded head, dark eye with dark iris, white underparts in flight, mantle slightly lighter than RBGU, and larger mirrors on P10 and P9 with more white extensive white subterminal spotting on the rest of the primaries in comparison to nearby HEGU.

Technical Information

Model
Canon EOS 7D Mark II
Lens model
EF400mm f/5.6L USM
f-stop
f/5.6
Focal length
400 mm
Shutter speed
1/1600 sec
ISO
500
Flash
Flash did not fire, auto
Original file size
2,252KB
Dimensions
2136 x 1248

Related Media

Same Observation

View All

Same Checklist

View All

Same Species

View All