Thayer's Gull (thayeri)

(last update: January 22, 2013)

Amar Ayyash (USA)
Mars Muusse (Netherlands)

Thayer's Gull 1st cycle, November 16 2009, Wisconsin Point, Superior, WI. Picture: Erik Bruhnke.

Visit: Erik's Pbase photostream.

Iceland Gull Juvenile (left) and Thayer's Gull Juvenile (right). Pale windows on inner primaries which continue to the inner webs of the outer primaries. Also lack of dark pigmentation on the inner web tips of P1-P4, with just a bit of faint darker on P4. Note difference in overall colouration.