This presumed 2nd-Basic Lesser Black-backed-type
Gull was photographed at Braunig
Lake, San Antonio, Texas on December 27, 1992 by Willie Sekula.
This is a very thick-chested, heavy-billed individual:
There is a definite - albeit rather dull - paler panel
on the inner primaries:
The greater secondary coverts appear to be solidly adult-gray
- more of a 3rd-Basic feature, yet the secondaries are dark blackish-brown
- a typical 2nd-Basic condition:
compare the mantle color of the RBGU on the left, with this bird: