This first-basic Glaucous Gull
Larus hyperboreus was photographed at Chooshi,
Chiba, Japan, March 5, 1999 by Ted Lee Eubanks. This is a rather
dainty-looking individual, and is the amount of dusky subterminal
marking on the primary tips too great for a pure Glaucous Gull?
- if so, could this be a hybrid with Glaucous-winged Gull; note
that the area of the bill just behind the black tip shows some
signs of darkening; comments?:
