Photographic Comparisons of Selected Gulls

(Photos complements of Jeff Poklen--for many more gull pictures)

(click on photo to enlarge)

vs.
First Winter Thayer's Gull

Monterey Bay, October 2001

  First Winter Glaucous-winged Gull

Monterey Bay, December 2001

 

vs.
First Winter Thayer's Gull

Monterey Bay, November 1997

  First Winter Glaucous-winged Gull

Monterey Bay, October 1996

Presumed Glaucous-winged  X Western Gull hybrid (L) with Thayer's Gull (R)

 Both Adult Basic,  Rio Del Mar, November 2004

 

3 Adult Basic Gulls,

From top to bottom:  Western, Thayer's, Glaucous-winged

 

2 Adult Basic Gulls,

Herring  (foreground) and Thayer's

 

More gull pictures                  Gull ID flowchart