This 2nd-basic Mew Gull Larus canus brachyrhynchus
was photographed by Martin Reid at Village Creek Stirring Tanks,
Tarrant County, Texas, on February 16, 2003:
NOTE: In the image below, Photographic Size Illusion is
making the RBGU look larger than in real-life; this Mew Gull is
only very slightly smaller than a typical RBGU: