This gull was at the Elliot Landfill, Corpus Christi, Texas on
December 08 2004; it was the size of a large RBGU:
Note the short white eye-crescent above the eye (absent below)
on both sides; the 2nd-generation mantle/scap and breast freathers
typical of a four-year gull; the pale panel on the inner primaries
(similar to that of darkish 1st-cycle RBGUs); the white shafts
and hint of pale markings at the base of the outer retrices; the
white-centered, brown-fringed underwing coverts (like on the darkest
juv RBGUs, and on Mew Gull); the odd bill shape that seems wrong
for either RBGU or CAGU:-
