northern shoveler and other waterfowl swimming on the calm waters of a pond in south san francisco bay area; sunnyvale, california

america anas area bay baylands beautiful birds bright california calm cattail clypeata colorful copy delta ducks feeding flock francisco green group lake landscape marsh migration natural nature nobody northern park plants pond reflection san scenery scenic season shore shoreline shoveler space spring springtime sunny sunnyvale surface vegetation vibrant water waterfowl wetlands wild wildlife