Probable Cougar/Mountain Lion (Puma concolor) track in mud, Russian Ridge Open Space Preserve, San Mateo County, California - 29 December 2007. 9.5 cm in length, 8 cm in width.
Gall of Spiny Leaf Gall Wasp (Diplolepis polita) on California Rose leaf - Arastradero Preserve, Santa Clara County, California - June 2008.
Perched on its host, Holodiscus discolor.
Wedgeleaf Ceanothus (Buck Brush, Ceanothus cuneatus), Skyline Ridge Open Space Preserve, San Mateo County, California - 2 April 2011. Many of these shrubs were flowering today in an area of chaparral.
Singing like mad in the late afternoon.