adult; no sexual dimorphism (California, USA; 2007-01-13)

White-crowned Sparrow
Zonotrichia leucophrys

Native Range: North America

Notes: abundant in bushy and weedy habitats; generally resembles White-throated Sparrow but lacks white throat; distinctive song begins with clear whistles; often found in small flocks.

frontal view; white-and-black striped crown (California, USA; 2007-04-21)

dorsal view streaks on back (California, USA; 2008-01-20)

pair (California, USA; 2007-04-21)

clear whitish gray underparts (California, USA; 2008-01-20)

light-colored bill (California, USA; 2006-12-24)

juvenile; brown-and tan striped head California, USA; 2007-10-28)

juvenile showing tan median crown stripe (California, USA; 2007-10-28)

juvenile (California, USA; 2007-01-27)

nonbreeding adult (California, USA; 2006-10-06)

posing for portrait (California, USA; 2009-01-18)

side view (California, USA; 2011-11-18)

frontal view (California, USA; 2011-11-18)