Bewick's Wren

 The Bewick's Wren is a very common in brushy habitats .  That also includes  mesquite tickets to near forests.    The Southwest Wren's are paler and grayer than Pacific Wren's are.
Their call varied from dry harsh notes to a soft dry sound.

 DesertDale  caught  this Bewick's Wren, building its nest along the rail, next to the walk way at the park.

Kitfoxgal