The robin nestlings fledged fourteen days after we spotted the first eggshell on the driveway below the nest. The first one may have flown away the previous evening, leaving three increasingly restless siblings behind:

They’re recognizably robins now, covered in young-bird speckle camouflage.
Feeding continued apace:

After feeding, robin nestlings produce fecal sacs, which the parents either eat or carry away:

Robins aren’t big on facial expressions, but, speaking from personal experience, anything to do with diapers isn’t the high point of a parent’s day.
And then there were none:

The gazillion black dots on the soffit are pinpoint-sized insects / mites / ticks infesting the nest and, presumably, the birds. The earlier pictures don’t show them, so perhaps these missed the last bird off the nest and are now regretting their life choices.
Go, birds, … gone!