Our neighbors have a Killdeer nesting in their front flower bed. She is right next to the sidewalk, 5 feet from the porch. She picked a very busy, high traffic area.
I watered flowers for our neighbor over the weekend and had forgotten about their new neighbor. I was reminded quickly as I heard a loud piercing chirpping - like an alarm. I walked within 2 feet of her nest and she got crazy upset. She did the "broken wing dance", to distract me and to get me away from her nest.
I kept assuring her everything was okay, but she didn't listen.