Caption Duck crossing sign at Palo Alto Baylands Preserve on the shore of San Francisco Bay, California, United States of America
Keywords America, Auto, Automobile, Avian, Bay Area, Bird, Birds, Blue, CA, Calif., California, Car, Care, Careful, Caution, Crossing, Drive, Driving, Duck crossing, Fowl, Palo Alto, Palo Alto Baylands Preserve, Parental, Posting, Road sign, San Francisco Bay Area, Sign, Signage, U.S., U.S.A., United States, United States of America, US, USA, Vehicle, Warning, Waterfowl, Xing, X-ing, Yellow
