The marsh areas along the shore of San Francisco Bay in Hayward are a popular spot for birds. Egrets are certainly a common bird in this area so seeing some of them while walking along the trails in the area was no surprise. I was interested to see how close you could get without disturbing them. The area is popular with people so they probably are relatively used to having people around. Even so, I did not want to cause them any disturbance. As it was, they seemed far more focused on whatever they were going to eat next than they were of me.