This bizarre 1st-Basic presumed smithsonianus Herring Gull was photographed at La Marque
Race Track, Texas on March 24, 1999 by Martin Reid; I feel it
is a new taxon, the Pimple-headed Gull (Larus argentatus minutacephalus).
In direct comparison, the head looked slightly smaller than nearby
In this 2nd picture the odd bird has its bill slightly open, exaggerating
the bill depth; the pale 1B smithsonianus to the left is
an extremely small (but normally-proportioned) bird - in fact
the smallest HEGU out of c.100 individuals: