least sandpipers calidris minutilla birds flying over the waters of san francisco bay, palo alto, california; least sandpipers

america animal area bay baylands birds birdwatching brown buff calidris california color copy delta environment fauna flight flock flying francisco free freedom group lake least merced mid migratory minutilla nature outdoors park peep pond preserve profile reflection san sandpiper season shorebirds small space states stints surface tiny travel united usa water wetlands wild wildlife