Full Fledged Sparrow Chick Goodbye Kiss

The sparrow chicks seem to be taking turns standing in the bird nest door.
They are fully fledged and are a day or two away from being on their own.
We are going camping for a few days starting tomorrow afternoon.
 The three chicks likely will have flown the coop by the time we come back.
I suspect this photo will be the goodbye kiss for our little Sparrow chicks.