This seasonal checklist was developed from records compiled by the Santa Cruz Bird Club[?], updated most recently September 30, 2002. Included here are common (C), fairly common (F), and uncommon (U) occurances. Not included are rare, casual, and irregular sightings.
Santa Cruz county is located on the Californian coast south of San Francisco and north of Carmel and Monterey.
... not simply fall over, but start precessing around. (The precessing motion is perpendicular to the torque trying to make the gyro fall over.)
The axis of the gyroscope ...