This Adult Basic Lesser Black-backed Gull
(Larus fuscus) was photographed at Corpus Christi,
Texas on February 14, 1990 by Greg Lasley - not too far away from
where "Graeme the graellsii" (see elsewhere)
was photographed on the same day. As with Graeme, the nearby regularly-wintering
LBBG, the bill of this otherwise-adult bird has a large area of
black:
