This Bewick's Wren Thryomanes bewickii
was at "the Willows" - a tiny pond with a few shrubs and reeds amid coastal dunes and developments on Mustang Island, Nueces county, TX on October 14, 2011. This species is extremely rare on Mustang Island, and is presumed to be a migrant (other obvious migrants such as Brown Thrasher were at the same spot that morning) - but what subspecies is it?:
