Top of Propane Tank Saga - Empty Nest

I never did positively identify the birds that built and familied this nest, but today it was empty.  Needless to say I was a bit worried about whether the hatchlings had matured enough to fly away or if a predator such as a snake had raided them.   Although not identified I knew they were smallish birds, wrens or such ilk, so I checked the photo dates from when I first saw and photographed the three white and brown spotted eggs (24Jun'19) and of course this photograph today (21Jul'19) - and making minor assumptions, such as I probably did not see and photograph the eggs the day they were laid, and looking at about six or more bits of information on from small bird eggs to leaving the nest and using a rough rule of thumb that the time range was 4 to 5 weeks in general, I decided YES they did mature and fly away.  (I like happy endings you can see!!)