Ross's Goose (Chen rossii)

Shadow Cliffs East Bay Regional Recreation Area (Pleasanton, Calif.)   Date: Jan 17, 2004

The head and bill shapes differ from those of slightly larger Snow Goose. Ross's Goose has "rounded head and stubby bill; little or no 'grin patch'; border at base of bill straight and vertical; bluish on base of bill " (From Sibley Guide to Birds)