At work today, we were planting trees in a mulch bed where a Killdeer was squawking at us, puffing out her feathers and chasing us away. We soon realized she had eggs she was protecting. We drew a circle in the mulch so we knew not to step there. Though she chirped her annoyance at us the entire time we worked, all was well in the end! I never would have guessed what beautiful eggs they have!