Golden-crowned Sparrow (Zonotrichia atricapilla) 30 March 2012. Pacifica, San Mateo County, CA Photo © 2012 Joseph Morlan
This is a common winter visitor and migrant to our area. It breeds in far Western Canada and in Alaska. They are molting now and this individual has almost completed the head molt resulting in very broad lateral crown stripes.
Digiscoped through window with Panasonic DMC-LX5 | Nikon FieldScope III | 30XWA | hand-held (no adapter)