white eye-ring; pale auriculars framed by dark (California, USA; 2007-11-22)

Vesper Sparrow
Pooecetes gramineus

Native Range: North America

Notes: an inhabitant of open, sparsely vegetated ground and pastures; distinctive facial pattern; white outer tail feathers are best evident in flight.

streaked back; white outer tail feathers (California, USA; 2007-11-22)

distinctive facial pattern (Arizona, USA; 2012-04-28)