The lawn is dieing back but I decided to mow the weeds so I walked all the good nesting sites and didn't see any and mom and dad weren't bothering me so figured I was safe. Went slowly and tried to watch for them or any signs and nothing.
I was figuring I'd check the PT Cruiser mom recently gave us as she's officially too old to drive now and my air conditioning recharge cans are in the shed. I was wandering back and forth through the gate. I noticed the male twittering by the corner of the fence inside the driveway and he had little pieces of grass in his beak. Mom was around too and they were both complaining and staying very close to me in that corner. There are some old bird feeders there and the deck lid for my Neon I used to have so its grown up, and protected by all the stuff hidden in that corner behind the fence.
I kept trying to stay just far away for one of them to go to the nest build site. Dad finally jumped in the spot where the flower pots and feeders make a sheltered spot like a tunnel. There is good evidence of a nest there and nothing including my mower can get to it, they learned and have started over