This gull was photographed at Corpus Christi Landfill on March
04, 2004 by Martin Reid; my brief looks at it standing prior to
it flying away showed that the bill/head were typical for HERG-types
(dark bill tip "bled" into dull fleshy base,) and did
not suggest any GLGU genes (as in Nelson's Gull); the underparts
were heavily-marked with diffuse brown blurry streaking - as on
many vegae and unlike the more clear-cut streaks of argentatus/argenteus:
Note that the tertials are not solidly dark, as in smithsonianus:
